Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity - Effect of Recording Stock-Based Compensation (Detail)

v2.4.1.9
Stockholders' Equity - Effect of Recording Stock-Based Compensation (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Jan. 31, 2015
Jan. 31, 2014
Jan. 31, 2013
Stock-based compensation expense by type of award:      
Stock options $ 1,036us-gaap_StockOptionPlanExpense $ 453us-gaap_StockOptionPlanExpense $ 3,586us-gaap_StockOptionPlanExpense
Restricted stock units 1,607us-gaap_RestrictedStockExpense 1,907us-gaap_RestrictedStockExpense 2,218us-gaap_RestrictedStockExpense
Deferred stock units 500seac_DeferredStockExpense    
Performance-based restricted stock units 77seac_PerformanceBasedRestrictedStockUnits 599seac_PerformanceBasedRestrictedStockUnits 125seac_PerformanceBasedRestrictedStockUnits
Total stock-based compensation $ 3,220us-gaap_ShareBasedCompensation $ 2,959us-gaap_ShareBasedCompensation $ 5,929us-gaap_ShareBasedCompensation