Basis of Presentation (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016 USD ($) center	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($) center	Sep. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)
Variable Interest Entity [Line Items]
Number of ownership interests of less than 51% | center	24		24
Investments in unconsolidated affiliates	$ 111,006		$ 111,006		$ 169,170
Income (Loss) from Equity Method Investments	4,445	$ 4,935	18,375	$ 11,575
Net revenue	822,216	650,227	2,305,393	1,862,622
Prepaid and other current assets	64,454		64,454		75,771
Restricted Cash and Marketable Securities
Restricted cash and marketable securities, total	30,300		30,300		27,400
Restricted cash and investments, noncurrent	17,500		17,500		13,900
Restricted marketable securities	200		200		2,700
Variable Interest Entity, Primary Beneficiary, Aggregated Disclosure [Member]
Variable Interest Entity [Line Items]
Assets of VIEs	937,500		937,500		740,100
Liabilities of VIEs	327,900		327,900		299,000
Restricted use assets of VIEs	216,800		216,800		176,800
Debt of VIEs guaranteed by AmSurg	18,700		18,700		21,700
Variable Interest Entity, Not Primary Beneficiary, Aggregated Disclosure [Member]
Variable Interest Entity [Line Items]
Net revenue	900	4,100	12,600	11,200
Prepaid and other current assets	$ 6,000		$ 6,000		$ 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	$ 314,609	$ 308,983	$ 941,490	$ 903,884
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%