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Income Taxes - Additional Information (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Jan. 31, 2017
Jan. 31, 2016
Jan. 31, 2015
Income Taxes [Line Items]      
Net deferred tax assets $ 52,664 $ 54,248  
Unrecognized tax benefit that, if recognized, would impact the effective tax rate 4,466 5,698  
Recognized (benefit)/expense in interest and penalties (218) (686) $ 408
Accrued amounts for payment of interest and penalties 582 800  
Unrecognized tax benefits, lower bound 0    
Unrecognized tax benefits, upper bound 4,009    
U.S. Federal      
Income Taxes [Line Items]      
Net deferred tax assets 28,549 28,249  
Net operating loss carryforwards 5,841    
Tax credit carryforwards $ 6,373    
U.S. Federal | Earliest Tax Year      
Income Taxes [Line Items]      
Expiration date 2021    
Tax credit expiration date 2018    
U.S. Federal | Latest Tax Year      
Income Taxes [Line Items]      
Expiration date 2037    
Tax credit expiration date 2031    
State and Local Jurisdiction      
Income Taxes [Line Items]      
Net deferred tax assets $ 14,798 17,391  
Foreign Jurisdictions      
Income Taxes [Line Items]      
Net deferred tax assets 9,317 $ 8,608  
Net operating loss carryforwards, expire 2017 through 2033 179    
Net operating loss carryforwards, do not expire 10,176    
Undistributed earnings $ 293,160    
Foreign Jurisdictions | Earliest Tax Year      
Income Taxes [Line Items]      
Expiration date 2017    
Foreign Jurisdictions | Latest Tax Year      
Income Taxes [Line Items]      
Expiration date 2022