Long-Term Debt - Additional Information (Detail) (USD $)								0 Months Ended
	May 31, 2014	Feb. 28, 2014	May 30, 2012	Dec. 28, 2012 2012 Credit Agreement	Dec. 28, 2012 2012 Credit Agreement Term Loan	Dec. 28, 2012 2012 Credit Agreement Revolver	Dec. 28, 2012 2012 Credit Agreement Letter of Credit	Aug. 09, 2013 First Amendment to Credit Agreement Maximum	May 06, 2014 Second Amendment to Credit Agreement Maximum
Debt Instrument [Line Items]
Maximum borrowing capacity under credit facility				$ 100,000,000	$ 80,000,000	$ 20,000,000	$ 5,000,000
Original issue discount of issuance of debt	1,378,000	1,475,000
First amendment total costs								100,000	100,000
Permitted Investment									6,000,000
Excluded Covenant Costs									1,250,000
Principal amount of nonrecourse notes issued			$ 82,200,000
Interest rate during period (as a percent)			4.10%