Basis of Presentation (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016 USD ($) center	Jun. 30, 2015 USD ($)	Jun. 30, 2016 USD ($) center	Jun. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)
Variable Interest Entity [Line Items]
Number of ownership interests of less than 51% | center	24		24
Investments in unconsolidated affiliates	$ 179,056		$ 179,056		$ 169,170
Income (Loss) from Equity Method Investments	7,351	$ 3,989	13,930	$ 6,640
Net revenue	758,499	641,950	1,483,177	1,212,395
Prepaid and other current assets	74,565		74,565		75,771
Restricted Cash and Marketable Securities
Restricted cash and marketable securities, total	29,900		29,900		27,400
Restricted cash and investments, noncurrent	17,100		17,100		13,900
Restricted marketable securities	500		500		2,700
Variable Interest Entity, Primary Beneficiary, Aggregated Disclosure [Member]
Variable Interest Entity [Line Items]
Assets of VIEs	780,500		780,500		740,100
Liabilities of VIEs	297,700		297,700		299,000
Restricted use assets of VIEs	178,600		178,600		176,800
Debt of VIEs guaranteed by AmSurg	18,200		18,200		21,700
Variable Interest Entity, Not Primary Beneficiary, Aggregated Disclosure [Member]
Variable Interest Entity [Line Items]
Net revenue	5,300	3,800	11,600	7,200
Prepaid and other current assets	$ 9,200		$ 9,200		$ 6,000
Consolidated [Member]
Variable Interest Entity [Line Items]
Number of ownership interests of less than 51% | center	2		2
Ambulatory Services [Member]
Variable Interest Entity [Line Items]
Net revenue	$ 319,747	$ 310,991	$ 626,881	$ 594,901
Maximum [Member] | Variable Interest Entity, Not Primary Beneficiary, Aggregated Disclosure [Member]
Variable Interest Entity [Line Items]
Percent of voting rights in unconsolidated affiliates			50.00%