Estimated Fair Values of Assets Acquired and Liabilities Assumed for Danfotech Acquisition (Details) (USD $) In Thousands, unless otherwise specified	Sep. 05, 2012 as initially reported	Sep. 05, 2012 Stewart [Member] as initially reported	May 27, 2011 Lincat	May 27, 2011 Lincat as initially reported	May 27, 2011 Lincat Measurement Period Adjustments	Jul. 05, 2011 Danfotech	Jul. 05, 2011 Danfotech as initially reported	Jul. 05, 2011 Danfotech Measurement Period Adjustments
Business Acquisition [Line Items]
Cash			$ 12,392	$ 12,392	$ 0	$ 165	$ 165	$ 0
Deferred tax asset						235	0	235
Current assets		11,839	16,963	16,992	(29)	703	1,073	(370)
Property, plant and equipment		653	14,368	14,368	0	47	102	(55)
Goodwill		17,886	38,491	45,765	(7,274)	5,678	3,423	2,255
Other intangibles		6,850	33,319	31,343	1,976	1,086	1,864	(778)
Other assets						4	4	0
Current liabilities		(5,228)	(9,750)	(10,924)	1,174	(1,116)	(309)	(807)
Long-term deferred tax liability			(9,650)	(13,803)	4,153	(137)	(46)	(91)
Other non-current liabilities	(4,000)		(1,611)	(1,611)	0	(750)	0	(750)
Consideration paid at closing	28,000					5,915	6,276	(361)
Additional assets acquired post closing						730	0	730
Contingent consideration	4,000	4,000				1,500	1,500	0
Net assets acquired and liabilities assumed	$ 32,000		$ 94,522	$ 94,522	$ 0	$ 8,145	$ 7,776	$ 369