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Summary of Significant Accounting Policies - Additional Information (Details)
$ in Thousands
 3 Months Ended 12 Months Ended
Apr. 30, 2016
USD ($)
Segment
Jan. 30, 2016
USD ($)
Significant Accounting Policies [Line Items]    
Fiscal period duration 364 days 364 days
Number of reportable segment | Segment 1  
Deferred financing fees reclassified from prepaid expenses to current portion of long-term debt, net of discount and debt issuance costs $ 983 $ 8,683
Deferred financing fees reclassified from other long-term Assets, net to long-term debt, net 134,274 146,333
Deferred income taxes, noncurrent 4,631 2,263
Accounting Standard Update 2015-03    
Significant Accounting Policies [Line Items]    
Deferred financing fees reclassified from prepaid expenses to current portion of long-term debt, net of discount and debt issuance costs 350 350
Deferred financing fees reclassified from other long-term Assets, net to long-term debt, net 1,259 1,347
Accounting Standards Update 2015-17    
Significant Accounting Policies [Line Items]    
Deferred income taxes, noncurrent 2,368  
Accounting Standards Update 2015-17 | As Previously Reported    
Significant Accounting Policies [Line Items]    
Deferred income taxes, current   $ 2,368
Accounting Standard Update 2016-09 | Restricted Stock Units (RSUs)    
Significant Accounting Policies [Line Items]    
Income tax benefits as reduction of income tax payable $ 470