Financial Information for the Company and Its Subsidiaries (Income Statements) (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
	Mar. 03, 2015	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Condensed Financial Statements, Captions [Line Items]
Revenues		$ 641,950	$ 278,227	$ 1,212,395	$ 537,788
Operating expenses:
Salaries and benefits		320,396	84,053	622,575	166,202
Supply cost		45,790	40,873	88,374	78,678
Other operating expenses		105,002	55,812	195,572	109,981
Transaction costs		1,982	3,579	3,453	3,579
Depreciation and amortization		23,612	8,436	46,430	16,695
Total operating expenses		496,782	192,753	956,404	375,135
Gain (loss) on deconsolidation		(3,035)	1,366	(3,258)	3,411
Equity in earnings of unconsolidated affiliates		3,989	539	6,640	1,303
Operating income		146,122	87,379	259,373	167,367
Interest expense, net		30,182	6,892	60,429	13,852
Earnings from continuing operations before income taxes		115,940	80,487	198,944	153,515
Income tax expense		25,193	12,798	39,442	25,780
Net earnings from continuing operations		90,747	67,689	159,502	127,735
Net earnings from discontinued operations		0	483	0	551
Net earnings		90,747	68,172	159,502	128,286
Less net earnings attributable to noncontrolling interests		57,072	49,211	104,789	92,130
Net earnings attributable to AmSurg Corp. shareholders		33,675	18,961	54,713	36,156
Preferred stock dividends	$ (2,300)	(2,264)	0	(4,528)	0
Net earnings attributable to AmSurg Corp. common shareholders		31,411	18,961	50,185	36,156
Amounts attributable to AmSurg Corp. common shareholders:
Earnings from continuing operations, net of income tax		31,411	18,771	50,185	36,163
Earnings (loss) from discontinued operations, net of income tax		0	190	0	(7)
Net earnings attributable to AmSurg Corp. common shareholders		31,411	18,961	50,185	36,156
Consolidation, Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Revenues		(9,488)	(4,777)	(18,342)	(9,386)
Operating expenses:
Salaries and benefits		(124)	(125)	(252)	(246)
Supply cost		(34)	0	(34)	0
Other operating expenses		(9,330)	(4,652)	(18,056)	(9,140)
Transaction costs		0	0	0	0
Depreciation and amortization		0	0	0	0
Total operating expenses		(9,488)	(4,777)	(18,342)	(9,386)
Gain (loss) on deconsolidation		0	(1,366)	188	(3,411)
Equity in earnings of unconsolidated affiliates		(137,455)	(108,739)	(249,774)	(204,079)
Operating income		(137,455)	(110,105)	(249,586)	(207,490)
Interest expense, net		0	0	0	0
Earnings from continuing operations before income taxes		(137,455)	(110,105)	(249,586)	(207,490)
Income tax expense		0	0	0	0
Net earnings from continuing operations			(110,105)		(207,490)
Net earnings from discontinued operations			0		0
Net earnings		(137,455)	(110,105)	(249,586)	(207,490)
Less net earnings attributable to noncontrolling interests		0	0	0	0
Net earnings attributable to AmSurg Corp. shareholders		(137,455)	(110,105)	(249,586)	(207,490)
Preferred stock dividends		0		0
Net earnings attributable to AmSurg Corp. common shareholders		(137,455)		(249,586)
Amounts attributable to AmSurg Corp. common shareholders:
Earnings from continuing operations, net of income tax			(110,105)		(207,490)
Earnings (loss) from discontinued operations, net of income tax			0		0
Net earnings attributable to AmSurg Corp. common shareholders		(137,455)		(249,586)
Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
Revenues		7,079	6,364	14,170	12,491
Operating expenses:
Salaries and benefits		15,511	15,282	33,154	29,767
Supply cost		0	0	0	0
Other operating expenses		5,783	4,849	12,417	9,015
Transaction costs		324	3,579	592	3,579
Depreciation and amortization		1,056	815	1,890	1,640
Total operating expenses		22,674	24,525	48,053	44,001
Gain (loss) on deconsolidation		0	1,366	(188)	3,411
Equity in earnings of unconsolidated affiliates		76,931	54,639	137,318	102,691
Operating income		61,336	37,844	103,247	74,592
Interest expense, net		11,978	6,341	23,864	12,793
Earnings from continuing operations before income taxes		49,358	31,503	79,383	61,799
Income tax expense		15,683	12,549	24,670	25,253
Net earnings from continuing operations			18,954		36,546
Net earnings from discontinued operations			7		(390)
Net earnings		33,675	18,961	54,713	36,156
Less net earnings attributable to noncontrolling interests		0	0	0	0
Net earnings attributable to AmSurg Corp. shareholders		33,675	18,961	54,713	36,156
Preferred stock dividends		(2,264)		(4,528)
Net earnings attributable to AmSurg Corp. common shareholders		31,411		50,185
Amounts attributable to AmSurg Corp. common shareholders:
Earnings from continuing operations, net of income tax			18,954		36,546
Earnings (loss) from discontinued operations, net of income tax			7		(390)
Net earnings attributable to AmSurg Corp. common shareholders		31,411		50,185
Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Revenues		329,579	0	615,158	0
Operating expenses:
Salaries and benefits		228,618	0	440,219	0
Supply cost		489	0	885	0
Other operating expenses		42,099	0	71,710	0
Transaction costs		1,658	0	2,861	0
Depreciation and amortization		14,617	0	28,924	0
Total operating expenses		287,481	0	544,599	0
Gain (loss) on deconsolidation		(3,035)	1,366	(3,223)	3,411
Equity in earnings of unconsolidated affiliates		64,513	54,639	119,096	102,691
Operating income		103,576	56,005	186,432	106,102
Interest expense, net		17,624	0	35,378	0
Earnings from continuing operations before income taxes		85,952	56,005	151,054	106,102
Income tax expense		9,021	0	13,924	0
Net earnings from continuing operations			56,005		106,102
Net earnings from discontinued operations			0		0
Net earnings		76,931	56,005	137,130	106,102
Less net earnings attributable to noncontrolling interests		0	0	0	0
Net earnings attributable to AmSurg Corp. shareholders		76,931	56,005	137,130	106,102
Preferred stock dividends		0		0
Net earnings attributable to AmSurg Corp. common shareholders		76,931		137,130
Amounts attributable to AmSurg Corp. common shareholders:
Earnings from continuing operations, net of income tax			56,005		106,102
Earnings (loss) from discontinued operations, net of income tax			0		0
Net earnings attributable to AmSurg Corp. common shareholders		76,931		137,130
Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Revenues		314,780	276,640	601,409	534,683
Operating expenses:
Salaries and benefits		76,391	68,896	149,454	136,681
Supply cost		45,335	40,873	87,523	78,678
Other operating expenses		66,450	55,615	129,501	110,106
Transaction costs		0	0	0	0
Depreciation and amortization		7,939	7,621	15,616	15,055
Total operating expenses		196,115	173,005	382,094	340,520
Gain (loss) on deconsolidation		0	0	(35)	0
Equity in earnings of unconsolidated affiliates		0	0	0	0
Operating income		118,665	103,635	219,280	194,163
Interest expense, net		580	551	1,187	1,059
Earnings from continuing operations before income taxes		118,085	103,084	218,093	193,104
Income tax expense		489	249	848	527
Net earnings from continuing operations			102,835		192,577
Net earnings from discontinued operations			476		941
Net earnings		117,596	103,311	217,245	193,518
Less net earnings attributable to noncontrolling interests		57,072	49,211	104,789	92,130
Net earnings attributable to AmSurg Corp. shareholders		60,524	54,100	112,456	101,388
Preferred stock dividends		0		0
Net earnings attributable to AmSurg Corp. common shareholders		60,524		112,456
Amounts attributable to AmSurg Corp. common shareholders:
Earnings from continuing operations, net of income tax			53,917		101,005
Earnings (loss) from discontinued operations, net of income tax			$ 183		$ 383
Net earnings attributable to AmSurg Corp. common shareholders		$ 60,524		$ 112,456