Goodwill and Other Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Dec. 31, 2012
Schedule of Finite and Indefinite-Lived Intangible Assets [Line Items]
Accumulated Amortization	$ (58,342)	$ (47,365)
Net Carrying Amount	123,085
Intangible Assets, Net (Excluding Goodwill)	167,085	178,318
Intangible Assets, Gross (Excluding Goodwill)	225,427	225,683
Facility management contracts
Schedule of Finite and Indefinite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (years)	13 years 4 months 24 days
Gross Carrying Amount	151,657	151,913
Accumulated Amortization	(41,772)	(33,141)
Net Carrying Amount	109,885	118,772
Covenants not to compete
Schedule of Finite and Indefinite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (years)	2 years
Gross Carrying Amount	8,570	8,570
Accumulated Amortization	(8,570)	(8,495)
Net Carrying Amount	0	75
Technology
Schedule of Finite and Indefinite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (years)	7 years
Gross Carrying Amount	21,200	21,200
Accumulated Amortization	(8,000)	(5,729)
Net Carrying Amount	13,200	15,471
Trade names
Schedule of Finite and Indefinite-Lived Intangible Assets [Line Items]
Accumulated Amortization	0	0
Trade name (Indefinite lived)	44,000	44,000
Trade name	$ 44,000	$ 44,000