Acquisitions and Divestitures (Details) (USD $)	6 Months Ended		1 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	May 31, 2014 Medaxial
Acquisitions
Voting interest acquired (as a percent)			100.00%
Total consideration			$ 11,900,000
Cash payment			10,700,000
Cash payment, net of cash acquired	8,403,000	0	8,400,000
Transaction related costs			300,000
Estimated fair value of tangible assets acquired, net			200,000
Estimated fair value of intangible assets acquired			1,600,000
Intangible assets, weighted average amortizable period			5 years
Goodwill recognized from acquisition of business			10,100,000
Goodwill deductible for tax purpose			$ 0