Financial Information for the Company and Its Subsidiaries (Income Statements) (Details) (USD $) In Thousands, unless otherwise specified	0 Months Ended	3 Months Ended		9 Months Ended
	Aug. 29, 2014	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Condensed Financial Statements, Captions [Line Items]
Revenues		$ 503,233	$ 263,035	$ 1,042,873	$ 780,714
Operating expenses:
Salaries and benefits		240,585	83,416	407,247	243,587
Supply cost		42,241	37,360	121,392	112,329
Other operating expenses		81,532	55,023	192,011	159,291
Transaction costs		25,102	110	28,681	285
Depreciation and amortization		20,866	8,239	37,620	24,152
Total operating expenses		410,326	184,148	786,951	539,644
Gain on deconsolidation		0	0	3,411	2,237
Equity in earnings of unconsolidated affiliates		2,158	1,095	3,461	2,193
Operating income		95,065	79,982	262,794	245,500
Interest expense, net		39,055	7,293	52,909	22,346
Debt extinguishment costs		16,887	0	16,887	0
Earnings from continuing operations before income taxes		39,123	72,689	192,998	223,154
Income tax expense		18	11,161	25,872	35,715
Net earnings from continuing operations		39,105	61,528	167,126	187,439
Net earnings (loss) from discontinued operations		(1,682)	739	(1,417)	2,937
Net earnings		37,423	62,267	165,709	190,376
Net earnings attributable to noncontrolling interests		47,257	45,496	139,387	137,231
Net earnings (loss) attributable to AmSurg Corp. shareholders		(9,834)	16,771	26,322	53,145
Preferred stock dividends	(2,200)	(2,239)	0	(2,239)	0
Net earnings (loss) attributable to AmSurg Corp. common shareholders		(12,073)	16,771	24,083	53,145
Amounts attributable to AmSurg Corp. common shareholders:
Earnings (loss) from continuing operations, net of income tax		(10,704)	16,659	25,569	52,192
Discontinued operations, net of income tax		(1,369)	112	(1,486)	953
Net earnings (loss) attributable to AmSurg Corp. common shareholders		(12,073)	16,771	24,083	53,145
Consolidation, Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Revenues		(4,803)	(4,281)	(14,189)	(12,872)
Operating expenses:
Salaries and benefits		(123)	(118)	(369)	(348)
Supply cost		0	0	0	0
Other operating expenses		(4,680)	(4,163)	(13,820)	(12,524)
Transaction costs		0	0	0	0
Depreciation and amortization		0	0	0	0
Total operating expenses		(4,803)	(4,281)	(14,189)	(12,872)
Gain on deconsolidation				(3,411)	(2,237)
Equity in earnings of unconsolidated affiliates		(104,716)	(100,843)	(308,795)	(305,507)
Operating income		(104,716)	(100,843)	(312,206)	(307,744)
Interest expense, net		0	0	0	0
Debt extinguishment costs		0		0
Earnings from continuing operations before income taxes		(104,716)	(100,843)	(312,206)	(307,744)
Income tax expense		0	0	0	0
Net earnings from continuing operations		(104,716)	(100,843)	(312,206)	(307,744)
Net earnings (loss) from discontinued operations		0	0	0	0
Net earnings		(104,716)	(100,843)	(312,206)	(307,744)
Net earnings attributable to noncontrolling interests		0	0	0	0
Net earnings (loss) attributable to AmSurg Corp. shareholders		(104,716)	(100,843)	(312,206)	(307,744)
Preferred stock dividends		0		0
Net earnings (loss) attributable to AmSurg Corp. common shareholders		(104,716)		(312,206)
Amounts attributable to AmSurg Corp. common shareholders:
Earnings (loss) from continuing operations, net of income tax		(104,716)	(100,843)	(312,206)	(307,744)
Discontinued operations, net of income tax		0	0	0	0
Net earnings (loss) attributable to AmSurg Corp. common shareholders		(104,716)		(312,206)
Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
Revenues		5,551	6,273	18,042	17,449
Operating expenses:
Salaries and benefits		14,961	16,087	44,728	45,940
Supply cost		0	0	0	0
Other operating expenses		6,424	5,427	15,440	15,483
Transaction costs		23,111	110	26,690	285
Depreciation and amortization		790	847	2,429	2,379
Total operating expenses		45,286	22,471	89,287	64,087
Gain on deconsolidation				3,411	2,237
Equity in earnings of unconsolidated affiliates		58,649	50,969	161,340	153,850
Operating income		18,914	34,771	93,506	109,449
Interest expense, net		23,864	6,711	36,658	20,661
Debt extinguishment costs		16,887		16,887
Earnings from continuing operations before income taxes		(21,837)	28,060	39,961	88,788
Income tax expense		(8,442)	10,747	16,687	34,532
Net earnings from continuing operations		(13,395)	17,313	23,274	54,256
Net earnings (loss) from discontinued operations		3,561	(542)	3,048	(1,111)
Net earnings		(9,834)	16,771	26,322	53,145
Net earnings attributable to noncontrolling interests		0	0	0	0
Net earnings (loss) attributable to AmSurg Corp. shareholders		(9,834)	16,771	26,322	53,145
Preferred stock dividends		(2,239)		(2,239)
Net earnings (loss) attributable to AmSurg Corp. common shareholders		(12,073)		24,083
Amounts attributable to AmSurg Corp. common shareholders:
Earnings (loss) from continuing operations, net of income tax		(15,634)	17,313	21,035	54,256
Discontinued operations, net of income tax		3,561	(542)	3,048	(1,111)
Net earnings (loss) attributable to AmSurg Corp. common shareholders		(12,073)		24,083
Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Revenues		221,013	0	221,013	0
Operating expenses:
Salaries and benefits		153,653	0	153,653	0
Supply cost		816	0	816	0
Other operating expenses		19,127	0	19,127	0
Transaction costs		1,991	0	1,991	0
Depreciation and amortization		12,320	0	12,320	0
Total operating expenses		187,907	0	187,907	0
Gain on deconsolidation				3,411	2,237
Equity in earnings of unconsolidated affiliates		48,225	50,969	150,916	153,850
Operating income		81,331	50,969	187,433	156,087
Interest expense, net		14,631	0	14,630	0
Debt extinguishment costs		0		0
Earnings from continuing operations before income taxes		66,700	50,969	172,803	156,087
Income tax expense		8,051	0	8,051	0
Net earnings from continuing operations		58,649	50,969	164,752	156,087
Net earnings (loss) from discontinued operations		0	0	0	0
Net earnings		58,649	50,969	164,752	156,087
Net earnings attributable to noncontrolling interests		0	0	0	0
Net earnings (loss) attributable to AmSurg Corp. shareholders		58,649	50,969	164,752	156,087
Preferred stock dividends		0		0
Net earnings (loss) attributable to AmSurg Corp. common shareholders		58,649		164,752
Amounts attributable to AmSurg Corp. common shareholders:
Earnings (loss) from continuing operations, net of income tax		58,649	50,969	164,752	156,087
Discontinued operations, net of income tax		0	0	0	0
Net earnings (loss) attributable to AmSurg Corp. common shareholders		58,649		164,752
Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Revenues		281,472	261,043	818,007	776,137
Operating expenses:
Salaries and benefits		72,094	67,447	209,235	197,995
Supply cost		41,425	37,360	120,576	112,329
Other operating expenses		60,661	53,759	171,264	156,332
Transaction costs		0	0	0	0
Depreciation and amortization		7,756	7,392	22,871	21,773
Total operating expenses		181,936	165,958	523,946	488,429
Gain on deconsolidation				0	0
Equity in earnings of unconsolidated affiliates		0	0	0	0
Operating income		99,536	95,085	294,061	287,708
Interest expense, net		560	582	1,621	1,685
Debt extinguishment costs		0		0
Earnings from continuing operations before income taxes		98,976	94,503	292,440	286,023
Income tax expense		409	414	1,134	1,183
Net earnings from continuing operations		98,567	94,089	291,306	284,840
Net earnings (loss) from discontinued operations		(5,243)	1,281	(4,465)	4,048
Net earnings		93,324	95,370	286,841	288,888
Net earnings attributable to noncontrolling interests		47,257	45,496	139,387	137,231
Net earnings (loss) attributable to AmSurg Corp. shareholders		46,067	49,874	147,454	151,657
Preferred stock dividends		0		0
Net earnings (loss) attributable to AmSurg Corp. common shareholders		46,067		147,454
Amounts attributable to AmSurg Corp. common shareholders:
Earnings (loss) from continuing operations, net of income tax		50,997	49,220	151,988	149,593
Discontinued operations, net of income tax		(4,930)	654	(4,534)	2,064
Net earnings (loss) attributable to AmSurg Corp. common shareholders		$ 46,067		$ 147,454