Goodwill and Intangible Assets, net Goodwill and Intangible Assets (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Goodwill	$ 254,832,000	$ 254,664,000	$ 1,137,000	$ 1,137,000
Goodwill activity			0
Amortization expense	20,721,000	3,626,000	$ 0
Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense	2,140,000	408,000
Customer relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense	12,845,000	2,664,000
Non-compete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense	$ 5,736,000	$ 554,000