- Intangible Assets (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Dec. 31, 2016
Schedule of Finite and Indefinite-Lived Intangible Assets [Line Items]
Accumulated Amortization	$ (119,729)	$ (108,152)
Net Carrying Amount	223,145
Gross carrying amount	388,074	312,036
Total acquired intangible assets	268,345	203,884
Trade names
Schedule of Finite and Indefinite-Lived Intangible Assets [Line Items]
Trade name (Indefinite lived)	$ 45,200	45,200
Facility management contracts
Schedule of Finite and Indefinite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life	16 years 3 months 6 days
Gross Carrying Amount	$ 308,474	233,136
Accumulated Amortization	(96,345)	(87,256)
Net Carrying Amount	$ 212,129	145,880
Covenants not to compete
Schedule of Finite and Indefinite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life	1 year
Gross Carrying Amount	$ 700	0
Accumulated Amortization	(167)	0
Net Carrying Amount	$ 533	0
Technology
Schedule of Finite and Indefinite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life	7 years 3 months 18 days
Gross Carrying Amount	$ 33,700	33,700
Accumulated Amortization	(23,217)	(20,896)
Net Carrying Amount	$ 10,483	$ 12,804