Goodwill and Other Intangible Assets, Net (Intangible Assets) (Details 1) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Goodwill [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	$ 225,374	$ 225,683
Schedule of intangible assets
Accumulated amortization	(61,974)	(47,365)
Finite-lived intangible assets	119,400
Total acquired intangible assets, Net carrying amount	163,400	178,318
Trade name
Schedule of intangible assets
Indefinite lived intangible assets	44,000	44,000
Facility Management Contracts
Goodwill [Line Items]
Amortization period	13 years 4 months 24 days
Schedule of intangible assets
Gross carrying amount	151,604	151,913
Accumulated amortization	(44,646)	(33,141)
Finite-lived intangible assets	106,958	118,772
Covenants not to compete
Schedule of intangible assets
Gross carrying amount	8,570	8,570
Accumulated amortization	(8,570)	(8,495)
Finite-lived intangible assets	0	75
Technology
Goodwill [Line Items]
Amortization period	7 years
Schedule of intangible assets
Gross carrying amount	21,200	21,200
Accumulated amortization	(8,758)	(5,729)
Finite-lived intangible assets	$ 12,442	$ 15,471