Acquisition (Schedule of Assets Acquired and Liabilities Assumed) (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended		9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2014 Platinum Health Services, LLC [Member]	Jul. 12, 2013 Platinum Health Services, LLC [Member]
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Fair value of assets acquired, net of liabilities assumed			$ 1,983	$ 2,604
Goodwill	44,438	40,183	27,483	23,228
Intangible assets			21,300	21,000
Net assets acquired			50,766	46,832
Fair value of assets acquired, net of liabilities, purchase price allocation adjustment			(621)
Adjustment to purchase price allocation	4,255		4,255
Intangible assets, purchase price allocation adjustment			300
Net assets acquired, purchase price allocation adjustment			$ 3,934