Goodwill and Other Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Schedule of Finite and Indefinite-Lived Intangible Assets [Line Items]
Accumulated Amortization	$ (92,876)	$ (87,793)
Net Carrying Amount	173,898
Gross carrying amount	311,974	311,941
Total acquired intangible assets	219,098	224,148
Trade names
Schedule of Finite and Indefinite-Lived Intangible Assets [Line Items]
Accumulated Amortization	0	0
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 (years)	15 years 7 months 6 days
Gross Carrying Amount	$ 233,074	233,041
Accumulated Amortization	(75,460)	(71,538)
Net Carrying Amount	$ 157,614	161,503
Technology
Schedule of Finite and Indefinite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (years)	7 years 3 months 18 days
Gross Carrying Amount	$ 33,700	33,700
Accumulated Amortization	(17,416)	(16,255)
Net Carrying Amount	$ 16,284	$ 17,445