Discontinued Operations - Narrative (Details) - USD ($) $ in Thousands		1 Months Ended	12 Months Ended			21 Months Ended	22 Months Ended
	Mar. 25, 2014	Aug. 31, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2015	Dec. 31, 2015	Nov. 26, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
(Loss) gain on sale of discontinued operations			$ (534)	$ (30)	$ 3,915
Cash held in escrow			0	300	500	$ 0	$ 0
Crescent Lighting Limited (CLL)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
(Loss) gain on sale of discontinued operations		$ (44)	(44)	0	$ 0
Accumulated other comprehensive income reclassification adjustment for foreign currency translation adjustment		$ (469)
Pool products
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale								$ 5,200
Cash held in escrow			$ 300	$ 300		300	300	$ 500
Escrow releases	$ 100					$ 200	$ 200
Number of additional months to receive payments	4 months