Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Aug. 31, 2015

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in Carrying Value of Goodwill

The changes in the carrying amount of goodwill for the years ended August 31, 2015 and 2014 are as follows (in thousands):

	Industrial			Energy			Engineered Solutions			Total
Balance as of August 31, 2013	$	82,611		$	341,903		$	310,438		$	734,952
Business acquired (Hayes)	17,536			—			—			17,536
Purchase accounting adjustments	—			(835		)	—			(835		)
Divestiture of RV business	—			—			(17,843		)	(17,843		)
Impact of changes in foreign currency rates	119			9,559			(718		)	8,960
Balance as of August 31, 2014	100,266			350,627			291,877			742,770
Purchase accounting adjustments	(3,244		)	—			—			(3,244		)
Impairment charge	—			(78,530		)	—			(78,530		)
Impact of changes in foreign currency rates	(4,915		)	(35,647		)	(12,178		)	(52,740		)
Balance as of August 31, 2015	$	92,107		$	236,450		$	279,699		$	608,256

Gross Carrying Amount and Accumulated Amortization of Intangible Assets

The gross carrying amount and accumulated amortization of the Company’s intangible assets are as follows (in thousands):

	Weighted Average Amortization Period (Year)	August 31, 2015						August 31, 2014
		Gross		Accumulated Amortization		Net Book Value		Gross		Accumulated Amortization		Net Book Value
Amortizable intangible assets:
Customer relationships	15	$	302,518	$	132,007	$	170,511	$	325,164	$	117,706	$	207,458
Patents	10	30,899		19,928		10,971		31,678		17,494		14,184
Trademarks and tradenames	18	21,604		7,055		14,549		23,241		6,201		17,040
Non-compete agreements & other	3	6,790		6,496		294		7,373		6,783		590
Indefinite lived intangible assets:
Tradenames	N/A	112,437		—		112,437		125,905		—		125,905
		$	474,248	$	165,486	$	308,762	$	513,361	$	148,184	$	365,177