Acquisitions And Dispositions (Sale of World Headquarters) - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended			0 Months Ended
	Feb. 28, 2015	Feb. 28, 2014	Feb. 28, 2013	Jul. 01, 2014
Significant Acquisitions and Disposals [Line Items]
Non-cash loss on disposal of fixed assets	$ 15,983	$ 560	$ 631
WHQ Location [Member]
Significant Acquisitions and Disposals [Line Items]
Cash received from sale of property				13,535
Non-cash loss on disposal of fixed assets	$ 15,544			$ 15,544
WHQ Development [Member]
Significant Acquisitions and Disposals [Line Items]
Anticipated year of completion for new world headquarters building	2016