Goodwill and Intangibles - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Amortization expense related to intangible assets	$ 13,300	$ 4,500
Accretion of contract rights under development agreements and placement fees	$ 1,170	$ 55
Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, useful life (years)	1 year
Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, useful life (years)	10 years