|
Stockholders' Equity - Additional Information (Detail) (USD $)
|
0 Months Ended | 12 Months Ended | 0 Months Ended | ||||
|---|---|---|---|---|---|---|---|
|
May 31, 2014
|
Sep. 04, 2013
|
Jan. 31, 2015
|
Jan. 31, 2014
|
Jan. 31, 2013
|
Oct. 20, 2014
|
Jul. 31, 2011
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||||||
| Preferred stock, shares authorized | 5,000,000us-gaap_PreferredStockSharesAuthorized | ||||||
| Preferred stock, shares issued | 0us-gaap_PreferredStockSharesIssued | ||||||
| Stock repurchase program, authorized amount | $ 40,000,000us-gaap_StockRepurchaseProgramAuthorizedAmount1 | $ 25,000,000us-gaap_StockRepurchaseProgramAuthorizedAmount1 | |||||
| Termination date of repurchase program | Apr. 30, 2015 | Jan. 31, 2015 | |||||
| Stock repurchased during period, Shares | 591,520us-gaap_TreasuryStockSharesAcquired | ||||||
| Common stock average price | $ 9.31us-gaap_TreasuryStockAcquiredAverageCostPerShare | ||||||
| Repurchases of our common stock | (5,504,000)us-gaap_PaymentsForRepurchaseOfCommonStock | (6,200,000)us-gaap_PaymentsForRepurchaseOfCommonStock | |||||
| Remaining shares available under authorized share repurchase | 34,500,000us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1 | ||||||
| Share-based compensation arrangement by share-based payment award, Description | Option awards may be granted to employees at an exercise price per share of not less than 100% of the fair market value per common share on the date of the grant. | ||||||
| Share-based compensation arrangement by Share-based payment award, Option award vesting period | 3 years | ||||||
| Share-based compensation arrangement by share based payment award, Option award expiration period | 10 years | ||||||
| Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Percent | 100.00%us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent | ||||||
| Expected dividend yield | 0.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate | 0.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate | 0.00%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate | ||||
| Shares, Granted | 500,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross | 12,500us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross | 892,500us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross | ||||
| Stock-based compensation expense | 3,220,000us-gaap_ShareBasedCompensation | 2,959,000us-gaap_ShareBasedCompensation | 5,929,000us-gaap_ShareBasedCompensation | ||||
| Share-based compensation arrangement by share-based payment award, options, grants in period, weighted average grant date fair value | $ 3.39us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue | $ 1.53us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue | $ 3.78us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue | ||||
| Employee service share-based compensation, nonvested awards, total compensation cost not yet recognized | 1,400,000us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized | ||||||
| Share based compensation arrangement by share based payment award estimated weighted average amortization period | 1 year 7 months 6 days | ||||||
| Aggregate intrinsic value for options outstanding | 100,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue | 4,500,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue | 1,400,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue | ||||
| Aggregate intrinsic value of vested shares and share options expected to vest | 100,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue | 4,400,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue | 1,300,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue | ||||
| Other options granted | 0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod | ||||||
| Share-based compensation arrangement by share-based payment award, options, exercises in period, total intrinsic value | 300,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue | 500,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue | |||||
| Stock options exercised | 0us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised | 118,528us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised | 304,550us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised | ||||
| Employee service share-based compensation, cash received from exercise of stock options | 1,100,000us-gaap_EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions | 2,200,000us-gaap_EmployeeServiceShareBasedCompensationCashReceivedFromExerciseOfStockOptions | |||||
| Restricted Stock Units and Deferred Stock Units [Member] | |||||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||||||
| Employee service share-based compensation, nonvested awards, total compensation cost not yet recognized |
2,200,000us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized / us-gaap_AwardTypeAxis = seac_RestrictedStockUnitsAndDeferredStockUnitsMember |
||||||
| Share based compensation arrangement by share based payment award estimated weighted average amortization period | 2 years 3 months 18 days | ||||||
| CEO [Member] | |||||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||||||
| Shares, Granted |
500,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross / us-gaap_TitleOfIndividualAxis = us-gaap_ChiefExecutiveOfficerMember |
||||||
| Share-based compensation arrangement by share-based payment award, options, vested in period, fair value |
1,700,000us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1 / us-gaap_TitleOfIndividualAxis = us-gaap_ChiefExecutiveOfficerMember |
||||||
| Stock-based compensation expense |
$ 300,000us-gaap_ShareBasedCompensation / us-gaap_TitleOfIndividualAxis = us-gaap_ChiefExecutiveOfficerMember |
||||||
| Compensation and Incentive Plan 2011 [Member] | Stock Compensation Plan [Member] | |||||||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||||||
| Share-based compensation arrangement by share-based payment award, number of shares authorized |
5,300,000us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized / us-gaap_AwardTypeAxis = us-gaap_StockCompensationPlanMember / us-gaap_PlanNameAxis = seac_CompensationAndIncentivePlan2011Member |
||||||
| Share-based compensation arrangement by share-based payment award, number of shares available for grant |
2,484,004us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant / us-gaap_AwardTypeAxis = us-gaap_StockCompensationPlanMember / us-gaap_PlanNameAxis = seac_CompensationAndIncentivePlan2011Member |
||||||
| X | ||||||||||
|
- Definition
The weighted average amortization period of share based compensation arrangement by share based payment award, estimated. No definition available.
|
| X | ||||||||||
|
- Definition
Aggregate proceeds received by the entity during the annual period from exercises of stock or unit options and conversion of similar instruments granted under equity-based payment arrangements. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Unrecognized cost of unvested share-based compensation awards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The cash outflow to reacquire common stock during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
General descriptive information regarding an arrangement under which employees and directors receive: (a) awards of equity shares, equity share options, or other equity instruments; or (b) the entity incurs liabilities to them: (1) in amounts based, at least in part, on the price of the entity's shares or other equity instruments; or (2) that require or may require settlement by issuance of the entity's shares. Such an arrangement is usually provided to employees and directors to compensate them, provide performance incentives to them, and to attract or retain their services. May also include pertinent information particular to a plan that is not elsewhere specified in the taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested). Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Net number of share options (or share units) granted during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Gross number of share options (or share units) granted during the period. No definition available.
|
| X | ||||||||||
|
- Definition
The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount by which the current fair value of the underlying stock exceeds the exercise price of fully vested and expected to vest options outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Purchase price of common stock expressed as a percentage of its fair value. No definition available.
|
| X | ||||||||||
|
- Definition
Number of share options (or share units) exercised during the current period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Amount of stock repurchase plan authorized. No definition available.
|
| X | ||||||||||
|
- Definition
Expiration date for the purchase of an entity's own shares under a stock repurchase plan, in the CCYY-MM-DD format. No definition available.
|
| X | ||||||||||
|
- Definition
Amount remaining of a stock repurchase plan authorized. No definition available.
|
| X | ||||||||||
|
- Definition
Total cost of shares repurchased divided by the total number of shares repurchased. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
Number of shares that have been repurchased during the period and are being held in treasury. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Details
|