Debt (Credit Facilities) - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended	0 Months Ended
	Feb. 28, 2015	Jan. 24, 2014	Aug. 09, 2019	Aug. 09, 2013
Debt Disclosure [Line Items]
Loan Facility and the Revolving Credit Facility	$ 150,000
Unamortized financing fees written off	2,780
Credit Agreement [Member]
Debt Disclosure [Line Items]
Restricted payment to parent		50,000
Future Quarterly Installment Payments [Member]
Debt Disclosure [Line Items]
Scheduled payments	5,000
Scenario Forecast [Member]
Debt Disclosure [Line Items]
Final Payment			235,000
Credit Agreement [Member]
Debt Disclosure [Line Items]
Current borrowing capacity				600,000
Term Loan Facility [Member]
Debt Disclosure [Line Items]
Current borrowing capacity				350,000
Discount amount on term loan facility				10,750
Voluntary prepayments on term loan facility	75,000
Term Loan Facility [Member] | Credit Agreement [Member]
Debt Disclosure [Line Items]
Credit agreement amendment description	On January 24, 2014, the Corporation amended the Credit Agreement to among other things, permit (i) specified corporate elections and tax distributions associated with a conversion from a “C corporation” to an “S corporation’ for U.S. federal income tax purposes, (ii) to make a one-time restricted payment of up to $50,000 to Parent and recurring restricted payments to enable the payment of current interest on the PIK Notes (as defined in Note 18), and (iii) to make certain additional capital expenditures each year primarily related to the Corporation’s information systems refresh project. The Credit Agreement was further amended on September 5, 2014. This amendment modified the Credit Agreement to among other things (i) reduce the interest rates applicable to the term loan and revolving loans, (ii) eliminate the London Interbank Offered Rate (“LIBOR”) floor interest rate used in the determination of interest charged on Eurodollar revolving loans, (iii) reduce the commitment fee applicable to unused revolving commitments and (iv) reset the usage term of the general restricted payment basket with effect from September 5, 2014.
Revolving Credit Facility [Member]
Debt Disclosure [Line Items]
Current borrowing capacity				$ 250,000