Goodwill and Other Intangible Assets Other Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Intangible Assets [Line Items]
Other intangible assets, gross	$ 15,802	$ 13,385
Less: Accumulated amortization (Finite-lived intangible assets)	(2,476)	(1,540)
Finite and Indefinite lived intangible assets, net	13,326	11,845
Amortization of Intangible Assets	1,012	398	$ 825
Other intangible assets, future amortization expense [Abstract]
2017	888
2018	886
2019	747
2020	700
2021	219
Patents [Member]
Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	483	492
Npt tradename [Member]
Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	1,500	1,500
Noncompete agreements [Member]
Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	4,396	1,953
Horizon tradename [Member]
Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets (Excluding Goodwill)	8,400	8,400
Pool System tradename and trademarks [Member]
Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets (Excluding Goodwill)	$ 1,023	$ 1,040