Schedule II (Details) - USD ($) $ in Thousands		12 Months Ended
		Feb. 28, 2017	Feb. 29, 2016		Feb. 28, 2015		Feb. 28, 2014
Valuation and Qualifying Accounts Disclosure [Line Items]
Product Warranty Accrual		$ 5,761	$ 8,807
Valuation Allowances and Reserves, Balance		28,854	30,016		$ 31,790		$ 37,957
Valuation Allowances and Reserves, Charged to Cost and Expense		76,143	62,130		70,772
Valuation Allowances and Reserves, Adjustments		(108)	(77)		(111)
Valuation Allowances and Reserves, Deductions	[1]	77,197	63,827		76,828
Allowance for Doubtful Accounts [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Valuation Allowances and Reserves, Balance		7,009	6,780		6,491		6,889
Valuation Allowances and Reserves, Charged to Cost and Expense		949	1,044		(375)
Valuation Allowances and Reserves, Adjustments		0	0		0
Valuation Allowances and Reserves, Deductions		720	755		23
Reserve for Cash Discount [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Valuation Allowances and Reserves, Balance		1,233	1,077		1,190		1,189
Valuation Allowances and Reserves, Charged to Cost and Expense		32,589	24,630		29,040
Valuation Allowances and Reserves, Adjustments		0	0		0
Valuation Allowances and Reserves, Deductions		32,433	24,743		29,039
Accrued Sales Incentives [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Valuation Allowances and Reserves, Balance		13,154	12,439		14,097		17,401
Valuation Allowances and Reserves, Charged to Cost and Expense		36,413	28,428		34,159
Valuation Allowances and Reserves, Adjustments		(108)	(77)		(111)
Valuation Allowances and Reserves, Deductions		35,590	30,009	[1]	37,352
Warranty Reserves [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Valuation Allowances and Reserves, Balance		7,458	9,720		10,012		$ 12,478
Valuation Allowances and Reserves, Charged to Cost and Expense		6,192	8,028		7,948	[2]
Valuation Allowances and Reserves, Adjustments		0	0		0
Valuation Allowances and Reserves, Deductions		$ 8,454	8,320		$ 10,414
Eyelock [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Product Warranty Accrual			$ 100

[1] For the allowance for doubtful accounts, cash discount allowances, and accrued sales incentives, deductions represent currency effects, chargebacks and payments made or credits issued to customers. For the reserve for warranties and product repair costs, deductions represent currency effects and payments for labor and parts made to service centers and vendors for the repair of units returned under warranty.

[2] .