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Acquisition (Preliminary Allocation of Purchase Consideration) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Jul. 12, 2013
Platinum Health Services, LLC [Member]
Jul. 12, 2013
Platinum Health Services, LLC [Member]
Customer Relationships [Member]
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]        
Fair value of assets acquired, net of liabilities assumed     $ 2,604  
Goodwill 40,183 16,955 23,228  
Intangible assets     21,000 21,000
Net assets acquired     $ 46,832