Description of Business and Summary of Significant Accounting Policies Product Warranty Table (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Feb. 28, 2014	Feb. 28, 2013	Feb. 29, 2012	Feb. 28, 2011
Standard Product Warranty Accrual	$ 12,478	$ 14,551	$ 8,795	$ 9,051
Product Warranty Accrual	11,033	12,788
Inventory Valuation Reserves	1,445	1,763
Warranty Liabilities Acquired During Acquisitions	0	1,799	1,480
Standard Product Warranty Accrual, Warranties Issued	11,508	13,798	11,839
Product Warranty Accrual, Payments	(13,581)	(9,841)	(13,575)
Product Warranty Expense	11,508	13,798	11,839
Warranty Related to Product Recall [Member]
Other Receivables	$ 1,626