Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Aug. 26, 2017	Aug. 26, 2017	Aug. 27, 2016	Feb. 25, 2017
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Effective income tax rate reconciliation, share-based compensation, excess tax deficiency, amount	$ 200	$ 400
Net cash provided by operating activities		65,338	$ 119,355
Net cash used in financing activities		(14,114)	$ (49,796)
Accounting Standards Update 2016-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Net cash provided by operating activities		100
Net cash used in financing activities		$ 100
Retained Earnings | Accounting Standards Update 2016-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cumulative effect of new accounting principle in period of adoption				$ 100