Financial Information for the Company and Its Subsidiaries (Balance Sheets) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014	Dec. 31, 2013
Assets
Cash and cash equivalents	$ 126,289	$ 208,079	$ 44,911	$ 50,840
Restricted cash and marketable securities	11,581	10,219
Accounts receivable, net	259,872	233,053
Supplies inventory	20,985	19,974
Prepaid and other current assets	83,857	115,362
Total current assets	502,584	586,687
Property and equipment, net	188,755	180,448
Investments in and receivables from unconsolidated affiliates	83,679	75,475
Goodwill	3,586,021	3,381,149
Intangible assets, net	1,282,377	1,273,879
Other assets	24,616	25,886
Total assets	5,668,032	5,523,524
Liabilities and Equity
Current portion of long-term debt	19,778	18,826
Accounts payable	28,514	29,585
Accrued salaries and benefits	141,719	140,044
Accrued interest	29,804	29,644
Other accrued liabilities	97,149	67,986
Total current liabilities	316,964	286,085
Long-term debt	2,229,683	2,232,186
Deferred income taxes	623,667	633,480
Other long-term liabilities	91,954	89,443
Intercompany payable	0	0
Noncontrolling interests – redeemable	185,177	184,099
Equity:
Total AmSurg Corp. equity	1,737,658	1,679,547
Noncontrolling interests – non-redeemable	482,929	418,684
Total equity	2,220,587	2,098,231
Total liabilities and equity	5,668,032	5,523,524
Consolidation, Eliminations [Member]
Assets
Cash and cash equivalents	0	0	0	0
Restricted cash and marketable securities	0	0
Accounts receivable, net	0	0
Supplies inventory	0	0
Prepaid and other current assets	(4,234)	(4,818)
Total current assets	(4,234)	(4,818)
Property and equipment, net	0	0
Investments in and receivables from unconsolidated affiliates	(5,701,510)	(5,425,210)
Goodwill	2,034,971	1,890,168
Intangible assets, net	0	0
Other assets	0	(1,466)
Total assets	(3,670,773)	(3,541,326)
Liabilities and Equity
Current portion of long-term debt	0	0
Accounts payable	(3,341)	(4,080)
Accrued salaries and benefits	0	0
Accrued interest	0	0
Other accrued liabilities	(893)	(738)
Total current liabilities	(4,234)	(4,818)
Long-term debt	(27,968)	(28,412)
Deferred income taxes	0	(1,466)
Other long-term liabilities	0	0
Intercompany payable	(1,228,157)	(1,227,989)
Noncontrolling interests – redeemable	120,666	120,555
Equity:
Total AmSurg Corp. equity	(2,963,722)	(2,774,257)
Noncontrolling interests – non-redeemable	432,642	375,061
Total equity	(2,531,080)	(2,399,196)
Total liabilities and equity	(3,670,773)	(3,541,326)
Parent Company [Member]
Assets
Cash and cash equivalents	43,658	134,351	3,836	6,710
Restricted cash and marketable securities	0	0
Accounts receivable, net	0	0
Supplies inventory	0	0
Prepaid and other current assets	31,245	47,997
Total current assets	74,903	182,348
Property and equipment, net	12,786	10,391
Investments in and receivables from unconsolidated affiliates	4,086,890	3,912,804
Goodwill	0	0
Intangible assets, net	64,165	67,678
Other assets	3,735	3,323
Total assets	4,242,479	4,176,544
Liabilities and Equity
Current portion of long-term debt	8,700	8,700
Accounts payable	1,956	1,849
Accrued salaries and benefits	26,405	25,035
Accrued interest	29,793	29,621
Other accrued liabilities	7,867	8,051
Total current liabilities	74,721	73,256
Long-term debt	2,202,600	2,206,950
Deferred income taxes	219,566	209,400
Other long-term liabilities	7,934	7,391
Intercompany payable	0	0
Noncontrolling interests – redeemable	0	0
Equity:
Total AmSurg Corp. equity	1,737,658	1,679,547
Noncontrolling interests – non-redeemable	0	0
Total equity	1,737,658	1,679,547
Total liabilities and equity	4,242,479	4,176,544
Guarantor Subsidiaries [Member]
Assets
Cash and cash equivalents	27,112	23,471	0	0
Restricted cash and marketable securities	0	0
Accounts receivable, net	140,678	123,772
Supplies inventory	288	301
Prepaid and other current assets	31,467	58,388
Total current assets	199,545	205,932
Property and equipment, net	8,661	9,972
Investments in and receivables from unconsolidated affiliates	1,698,299	1,587,881
Goodwill	1,551,050	1,490,981
Intangible assets, net	1,215,583	1,203,218
Other assets	1,001	943
Total assets	4,674,139	4,498,927
Liabilities and Equity
Current portion of long-term debt	0	0
Accounts payable	2,527	35
Accrued salaries and benefits	100,159	101,395
Accrued interest	0	0
Other accrued liabilities	49,384	44,305
Total current liabilities	152,070	145,735
Long-term debt	0	0
Deferred income taxes	404,101	425,546
Other long-term liabilities	64,586	63,616
Intercompany payable	1,228,157	1,219,979
Noncontrolling interests – redeemable	0	0
Equity:
Total AmSurg Corp. equity	2,825,225	2,644,051
Noncontrolling interests – non-redeemable	0	0
Total equity	2,825,225	2,644,051
Total liabilities and equity	4,674,139	4,498,927
Non-Guarantor Subsidiaries [Member]
Assets
Cash and cash equivalents	55,519	50,257	$ 41,075	$ 44,130
Restricted cash and marketable securities	11,581	10,219
Accounts receivable, net	119,194	109,281
Supplies inventory	20,697	19,673
Prepaid and other current assets	25,379	13,795
Total current assets	232,370	203,225
Property and equipment, net	167,308	160,085
Investments in and receivables from unconsolidated affiliates	0	0
Goodwill	0	0
Intangible assets, net	2,629	2,983
Other assets	19,880	23,086
Total assets	422,187	389,379
Liabilities and Equity
Current portion of long-term debt	11,078	10,126
Accounts payable	27,372	31,781
Accrued salaries and benefits	15,155	13,614
Accrued interest	11	23
Other accrued liabilities	40,791	16,368
Total current liabilities	94,407	71,912
Long-term debt	55,051	53,648
Deferred income taxes	0	0
Other long-term liabilities	19,434	18,436
Intercompany payable	0	8,010
Noncontrolling interests – redeemable	64,511	63,544
Equity:
Total AmSurg Corp. equity	138,497	130,206
Noncontrolling interests – non-redeemable	50,287	43,623
Total equity	188,784	173,829
Total liabilities and equity	$ 422,187	$ 389,379