Financial Information for the Company and Its Subsidiaries (Income Statements) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Condensed Financial Statements, Captions [Line Items]
Net revenue	$ 704,262	$ 650,227	$ 641,950	$ 570,445	$ 581,811	$ 502,350	$ 278,227	$ 259,561	$ 2,566,884	$ 1,621,949	$ 1,057,196
Operating expenses:
Salaries and benefits									1,314,392	694,576	327,585
Supply cost									184,222	164,296	153,126
Other operating expenses									397,794	284,928	216,501
Transaction costs						25,100			8,324	33,890	300
Depreciation and amortization									97,493	60,344	32,400
Total operating expenses									2,002,225	1,238,034	729,912
Net gain on deconsolidations									36,694	3,411	2,237
Equity in earnings of unconsolidated affiliates									16,152	7,038	3,151
Operating income									617,505	394,364	332,672
Interest expense, net									121,586	83,285	29,525
Debt extinguishment costs									0	16,887	0
Earnings from continuing operations before income taxes	161,178	135,797	115,940	83,004	101,535	39,142	80,487	73,028	495,919	294,192	303,147
Income tax expense									113,790	48,103	48,654
Net earnings from continuing operations	124,348	98,279	90,747	68,755	79,234	39,120	67,689	60,046	382,129	246,089	254,493
Net earnings (loss) from discontinued operations	(1,013)	0	0	0	(150)	(1,697)	483	68	(1,013)	(1,296)	7,051
Net earnings	123,335	98,279	90,747	68,755	79,084	37,423	68,172	60,114	381,116	244,793	261,544
Less net earnings attributable to noncontrolling interests									218,169	191,092	188,841
Net earnings attributable to AmSurg Corp. shareholders									162,947	53,701	72,703
Preferred stock dividends									(9,056)	(4,503)	0
Net earnings attributable to AmSurg Corp. common shareholders	63,309	40,397	31,411	18,774	25,115	(12,073)	18,961	17,195	153,891	49,198	72,703
Amounts attributable to AmSurg Corp. common shareholders:
Earnings from continuing operations, net of income tax	64,310	40,397	31,411	18,774	25,311	(10,697)	18,771	17,392	154,892	50,777	71,009
Earnings (loss) from discontinued operations, net of income tax	(1,001)	0	0	0	(196)	(1,376)	190	(197)	(1,001)	(1,579)	1,694
Net earnings attributable to AmSurg Corp. common shareholders	$ 63,309	$ 40,397	$ 31,411	$ 18,774	$ 25,115	$ (12,073)	$ 18,961	$ 17,195	153,891	49,198	72,703
Consolidating Adjustments [Member]
Condensed Financial Statements, Captions [Line Items]
Net revenue									(38,004)	(24,336)	(17,518)
Operating expenses:
Salaries and benefits									(507)	(5,786)	(467)
Supply cost									(80)	0	0
Other operating expenses									(37,417)	(18,550)	(17,051)
Transaction costs									0	0	0
Depreciation and amortization									0	0	0
Total operating expenses									(38,004)	(24,336)	(17,518)
Net gain on deconsolidations									0	0	0
Equity in earnings of unconsolidated affiliates									(584,080)	(442,508)	(409,010)
Operating income									(584,080)	(442,508)	(409,010)
Interest expense, net									0	0	0
Debt extinguishment costs										0
Earnings from continuing operations before income taxes									(584,080)	(442,508)	(409,010)
Income tax expense									0	0	0
Net earnings from continuing operations									(584,080)	(442,508)	(409,010)
Net earnings (loss) from discontinued operations									0	0	0
Net earnings									(584,080)	(442,508)	(409,010)
Less net earnings attributable to noncontrolling interests									0	0	0
Net earnings attributable to AmSurg Corp. shareholders									(584,080)	(442,508)
Preferred stock dividends									0	0
Net earnings attributable to AmSurg Corp. common shareholders									(584,080)	(442,508)	(409,010)
Amounts attributable to AmSurg Corp. common shareholders:
Earnings from continuing operations, net of income tax									(584,080)	(442,508)	(409,010)
Earnings (loss) from discontinued operations, net of income tax									0	0	0
Net earnings attributable to AmSurg Corp. common shareholders									(584,080)	(442,508)	(409,010)
Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
Net revenue									28,554	24,773	24,167
Operating expenses:
Salaries and benefits									69,102	65,697	61,038
Supply cost									0	0	0
Other operating expenses									24,682	18,667	22,360
Transaction costs									1,762	29,004	300
Depreciation and amortization									3,912	4,044	3,186
Total operating expenses									99,458	117,412	86,884
Net gain on deconsolidations									0	0	0
Equity in earnings of unconsolidated affiliates									349,139	237,657	207,199
Operating income									278,235	145,018	144,482
Interest expense, net									41,140	47,997	27,282
Debt extinguishment costs										16,887
Earnings from continuing operations before income taxes									237,095	80,134	117,200
Income tax expense									73,159	29,166	47,139
Net earnings from continuing operations									163,936	50,968	70,061
Net earnings (loss) from discontinued operations									(989)	2,733	2,642
Net earnings									162,947	53,701	72,703
Less net earnings attributable to noncontrolling interests									0	0	0
Net earnings attributable to AmSurg Corp. shareholders									162,947	53,701
Preferred stock dividends									(9,056)	(4,503)
Net earnings attributable to AmSurg Corp. common shareholders									153,891	49,198	72,703
Amounts attributable to AmSurg Corp. common shareholders:
Earnings from continuing operations, net of income tax									154,880	46,465	70,061
Earnings (loss) from discontinued operations, net of income tax									(989)	2,733	2,642
Net earnings attributable to AmSurg Corp. common shareholders									153,891	49,198	72,703
Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net revenue									1,331,042	508,572	0
Operating expenses:
Salaries and benefits									937,484	350,615	0
Supply cost									2,436	1,292	0
Other operating expenses									145,369	53,413	0
Transaction costs									6,562	4,886	0
Depreciation and amortization									61,658	25,610	0
Total operating expenses									1,153,509	435,816	0
Net gain on deconsolidations									37,350	3,411	2,237
Equity in earnings of unconsolidated affiliates									251,093	211,889	204,962
Operating income									465,976	288,056	207,199
Interest expense, net									77,947	33,026	0
Debt extinguishment costs										0
Earnings from continuing operations before income taxes									388,029	255,030	207,199
Income tax expense									38,891	17,373	0
Net earnings from continuing operations									349,138	237,657	207,199
Net earnings (loss) from discontinued operations									0	0	0
Net earnings									349,138	237,657	207,199
Less net earnings attributable to noncontrolling interests									0	21	0
Net earnings attributable to AmSurg Corp. shareholders									349,138	237,636
Preferred stock dividends									0	0
Net earnings attributable to AmSurg Corp. common shareholders									349,138	237,636	207,199
Amounts attributable to AmSurg Corp. common shareholders:
Earnings from continuing operations, net of income tax									349,138	237,636	207,199
Earnings (loss) from discontinued operations, net of income tax									0	0	0
Net earnings attributable to AmSurg Corp. common shareholders									349,138	237,636	207,199
Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net revenue									1,245,292	1,112,940	1,050,547
Operating expenses:
Salaries and benefits									308,313	284,050	267,014
Supply cost									181,866	163,004	153,126
Other operating expenses									265,160	231,398	211,192
Transaction costs									0	0	0
Depreciation and amortization									31,923	30,690	29,214
Total operating expenses									787,262	709,142	660,546
Net gain on deconsolidations									(656)	0	0
Equity in earnings of unconsolidated affiliates									0	0	0
Operating income									457,374	403,798	390,001
Interest expense, net									2,499	2,262	2,243
Debt extinguishment costs										0
Earnings from continuing operations before income taxes									454,875	401,536	387,758
Income tax expense									1,740	1,564	1,515
Net earnings from continuing operations									453,135	399,972	386,243
Net earnings (loss) from discontinued operations									(24)	(4,029)	4,409
Net earnings									453,111	395,943	390,652
Less net earnings attributable to noncontrolling interests									218,169	191,071	188,841
Net earnings attributable to AmSurg Corp. shareholders									234,942	204,872
Preferred stock dividends									0	0
Net earnings attributable to AmSurg Corp. common shareholders									234,942	204,872	201,811
Amounts attributable to AmSurg Corp. common shareholders:
Earnings from continuing operations, net of income tax									234,954	209,184	202,759
Earnings (loss) from discontinued operations, net of income tax									(12)	(4,312)	(948)
Net earnings attributable to AmSurg Corp. common shareholders									$ 234,942	$ 204,872	$ 201,811