Goodwill and Other Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Schedule of Finite and Indefinite-Lived Intangible Assets [Line Items]
Accumulated Amortization	$ (113,244)	$ (108,152)
Net Carrying Amount	153,610
Gross carrying amount	312,054	312,036
Total acquired intangible assets	198,810	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 and customer relationships
Schedule of Finite and Indefinite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life	15 years 7 months 6 days
Gross Carrying Amount	$ 233,154	233,136
Accumulated Amortization	(91,187)	(87,256)
Net Carrying Amount	$ 141,967	145,880
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	(22,057)	(20,896)
Net Carrying Amount	$ 11,643	$ 12,804