Supplemental Balance Sheet Information (Details) (USD $) In Thousands, unless otherwise specified							6 Months Ended				6 Months Ended				6 Months Ended
	Aug. 31, 2014	Feb. 28, 2014	Aug. 31, 2014 Land	Feb. 28, 2014 Land	Aug. 31, 2014 Building and improvements	Feb. 28, 2014 Building and improvements	Aug. 31, 2014 Building and improvements Minimum	Aug. 31, 2014 Building and improvements Maximum	Aug. 31, 2014 Computer, furniture and other equipment	Feb. 28, 2014 Computer, furniture and other equipment	Aug. 31, 2014 Computer, furniture and other equipment Minimum	Aug. 31, 2014 Computer, furniture and other equipment Maximum	Aug. 31, 2014 Tools, molds and other production equipment	Feb. 28, 2014 Tools, molds and other production equipment	Aug. 31, 2014 Tools, molds and other production equipment Minimum	Aug. 31, 2014 Tools, molds and other production equipment Maximum	Aug. 31, 2014 Construction in progress	Feb. 28, 2014 Construction in progress
PROPERTY AND EQUIPMENT
Estimated useful life							3 years	40 years			3 years	15 years			1 year	10 years
Property and equipment, gross	$ 209,563	$ 200,633	$ 12,800	$ 12,800	$ 101,950	$ 98,660			$ 66,410	$ 60,291			$ 25,655	$ 23,017			$ 2,748	$ 5,865
Less accumulated depreciation	(78,252)	(71,516)
Property and equipment, net	$ 131,311	$ 129,117