Accounts Receivable (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Bad debt expense			$ 207,046	$ 144,514
Allowances for accounts receivable	$ 208,780		$ 208,780		$ 167,411
Product Concentration Risk [Member] | Allowance for Doubtful Accounts [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for doubtful accounts related to fee for service patient visits			82.00%		80.00%
Ambulatory Services [Member] | Other Operating Expenses [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Bad debt expense	6,300	$ 4,700	$ 12,100	11,000
Physician Services [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Bad debt expense	$ 101,333	$ 65,783	$ 194,941	$ 133,535