Short-Term Borrowings - Additional Information (Details) - Revolving Credit Facility $ in Thousands		12 Months Ended
	Feb. 24, 2016 USD ($)	Jan. 31, 2016 USD ($)
Line of Credit Facility
Termination date for senior, unsecured revolving credit facility		Jan. 09, 2020
Revolving credit facility, maximum borrowing capacity		$ 125,000
Percentage of net current account receivable included in cash and account receivable ratio		42.00%
Maximum amount available for dividends and stock repurchase dollar limit		$ 50,000
Maximum amount available for dividend distribution and stock repurchase percent of cumulative net income		70.00%
Balance Available For Dividend Payment And Stock Repurchase		$ 112,038
Minimum
Line of Credit Facility
Commitment fee percentage on unused line of credit		0.30%
Adjusted quick ratio		1.00
Cash and accounts receivable ratio		1.25
Minimum | L I B O R
Line of Credit Facility
Basis spread on variable rate		2.00%
Minimum | Base Rate
Line of Credit Facility
Basis spread on variable rate		1.00%
Maximum
Line of Credit Facility
Commitment fee percentage on unused line of credit		0.40%
Leverage ratio		2.00
Senior leverage ratio		0.90
Maximum | L I B O R
Line of Credit Facility
Basis spread on variable rate		2.50%
Maximum | Base Rate
Line of Credit Facility
Basis spread on variable rate		1.50%
Subsequent Event
Line of Credit Facility
Maximum amount available for dividends and stock repurchase dollar limit	$ 200,000
Maximum amount available for dividend distribution and stock repurchase percent of cumulative net income	70.00%