Description of Business and Significant Events (Details) $ / shares in Units, $ in Thousands	Jul. 02, 2015 $ / shares shares	Dec. 31, 2015 USD ($) States Customers	Dec. 31, 2014 USD ($)
Description of Business and Significant Events [Line Items]
Number of customers		6,100,000
Assets held for sale | $		$ 0	$ 50,000
Merger Consideration, Cash Portion (US$ per share) | $ / shares	$ 28.25
Merger Consideration, Share Portion (share per share) | shares	0.6220
Government Contracts [Member]
Description of Business and Significant Events [Line Items]
Number of customers		2,800,000
Community based outpatient clinics [Member] | Government Contracts [Member] | U.S.Department of Veterans Affairs [Member]
Description of Business and Significant Events [Line Items]
Number of customers		4,083
Number of states in which entity operates | States		1