Description of Business and Summary of Significant Accounting Policies Property, Plant and Equipment (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Feb. 28, 2014	Feb. 28, 2013	Feb. 29, 2012
Property, Plant and Equipment [Line Items]
Land	$ 6,652	$ 6,421
Buildings	44,378	42,670
Property under capital lease	8,473	8,080
Furniture, fixtures and displays	4,951	4,296
Machinery and equipment	30,512	25,659
Construction-in-progress	1,856	4,159
Computer hardware and software	33,738	24,325
Automobiles	1,236	914
Leasehold improvements	10,505	9,415
Property, Plant and Equipment, Gross	142,301	125,939
Less accumulated depreciation and amortization	59,079	49,731
Less accumulated depreciation and amortization	10,252	10,440	6,111
Property, plant and equipment, net	83,222	76,208
Capitalized Computer Software, Amortization	1,300	794	553
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation	4,475	4,036
Capital Leases, Income Statement, Amortization Expense	$ 439	$ 483	$ 251