Quarterly report pursuant to Section 13 or 15(d)

Acquisition of TLL, LLC - Additional Information (Detail)

v2.4.1.9
Acquisition of TLL, LLC - Additional Information (Detail) (USD $)
3 Months Ended 0 Months Ended
Apr. 30, 2015
Feb. 02, 2015
Jan. 31, 2015
Business Acquisition [Line Items]      
Payments to acquire business $ 11,686,000us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired    
Contingent consideration liability, fair value 500,000us-gaap_ContingentConsiderationClassifiedAsEquityFairValueDisclosure    
Contingent consideration liability, fair value of employee portion 2,700,000seac_ContingentConsiderationLiabilityFairValueEmployeePortion    
Fair value of acquisition related contingent consideration 502,000us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1    
Goodwill 58,134,000us-gaap_Goodwill   41,008,000us-gaap_Goodwill
Timeline Labs [Member]      
Business Acquisition [Line Items]      
Percentage of equity interest acquired   100.00%us-gaap_MinorityInterestOwnershipPercentageByParent
/ us-gaap_BusinessAcquisitionAxis
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Payments to acquire business   14,186,000us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired
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Preliminary working capital adjustments   200,000seac_BusinessAcquisitionPreliminaryWorkingCapitalAdjustment
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Indemnification assets   1,400,000us-gaap_BusinessCombinationIndemnificationAssetsAmountAsOfAcquisitionDate
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Business acquisition, number of common stock issued   344,055us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued
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Common stock deposited into escrow   173,265seac_BusinessCombinationNumberOfCommonStockDepositedInEscrow
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Fair value of common stock issuance   6,700,000us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable
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Goodwill   17,453,000us-gaap_Goodwill
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Business acquisition related costs $ 100,000us-gaap_BusinessCombinationAcquisitionRelatedCosts
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