Description of Business and Summary of Significant Accounting Policies Goodwill and Intangible Assets (Tables)

12 Months Ended

Feb. 28, 2015

Goodwill and Intangible Assets [Abstract]

Schedule of Intangible Assets and Goodwill [Table Text Block]

The change in the carrying amount of goodwill is as follows:

	February 28, 2015			February 28, 2014			February 28, 2013
Beginning of period	$	117,938		$	146,680		$	86,069
Goodwill acquired	—			—			60,611
Foreign currency differences	(12,064		)	3,421			—
Impairment charge	—			(32,163		)	—
End of period	$	105,874		$	117,938		$	146,680
Gross carrying amount	$	138,037		$	150,101		$	146,680
Accumulated impairment losses	(32,163		)	(32,163		)	—
Net carrying amount	$	105,874		$	117,938		$	146,680

	February 28, 2015			February 28, 2014			February 28, 2013
Automotive
Beginning of period	$	71,405		$	67,984		$	7,373
Goodwill acquired	—			—			60,611
Foreign currency differences	(12,064		)	3,421			—
End of period	$	59,341		$	71,405		$	67,984
Gross carrying amount	$	59,341		$	71,405		$	67,984
Accumulated impairment charge	—			—			—
Net carrying amount	$	59,341		$	71,405		$	67,984
Premium Audio
Beginning of period	$	46,533		$	78,696		$	78,696
Impairment charge	—			(32,163		)	—
End of period	$	46,533		$	46,533		$	78,696
Gross carrying amount	$	78,696		$	78,696		$	78,696
Accumulated impairment charge	(32,163		)	(32,163		)	—
Net carrying amount	$	46,533		$	46,533		$	78,696
Total goodwill, net	$	105,874		$	117,938		$	146,680

Note: The Company's Consumer Accessories segment did not carry a balance for goodwill at February 28, 2015, February 28, 2014 or February 28, 2013

Schedule of Intangible Assets, Excluding Goodwill [Table Text Block]

	February 28, 2015
	Gross Carrying Value		Accumulated Amortization		Total Net Book Value
Finite-lived intangible assets:
Customer relationships (5-20 years)	$	62,506	$	19,316	$	43,190
Trademarks/Tradenames (3-12 years)	415		383		32
Patents (5-13 years)	8,831		3,365		5,466
License (5 years)	1,400		1,400		—
Contract subject to amortization (5 years)	1,556		1,556		—
Total finite-lived intangible assets	$	74,708	$	26,020	48,688
Indefinite-lived intangible assets
Trademarks					109,767
Total net intangible assets					$	158,455

	February 28, 2014
	Gross Carrying Value		Accumulated Amortization		Total Net Book Value
Finite-lived intangible assets:
Customer relationships (5-20 years)	$	68,231	$	16,381	$	51,850
Trademarks/Tradenames (3-12 years)	415		377		38
Patents (5-10 years)	10,357		2,879		7,478
License (5 years)	1,400		1,400		—
Contract subject to amortization (5 years)	1,556		1,474		82
Total finite-lived intangible assets	$	81,959	$	22,511	59,448
Indefinite-lived intangible assets
Trademarks					114,864
Total net intangible assets					$	174,312