Financial Information for the Company and Its Subsidiaries (Balance Sheets) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Assets
Cash and cash equivalents	$ 208,079	$ 50,840	$ 46,398	$ 40,718
Restricted cash and marketable securities	10,219	0
Accounts receivable, net	233,053	105,072
Supplies inventory	19,974	18,414
Prepaid and other current assets	115,362	36,699
Total current assets	586,687	211,025
Property and equipment, net	180,448	163,690
Investments in and receivables from unconsolidated affiliates	75,475	15,526
Goodwill	3,381,149	1,758,970	1,652,002
Intangible assets, net	1,273,879	27,867
Other assets	25,886	866
Total assets	5,523,524	2,177,944
Liabilities and Equity
Current portion of long-term debt	18,826	20,844
Accounts payable	29,585	27,501
Accrued salaries and benefits	140,044	32,294
Accrued interest	29,644	1,885
Other accrued liabilities	67,986	7,346
Total current liabilities	286,085	89,870
Long-term debt	2,232,186	583,298
Deferred income taxes	633,480	176,020
Other long-term liabilities	89,443	25,503
Intercompany payable	0
Noncontrolling interests – redeemable	184,099	177,697
Equity:
Total AmSurg Corp. equity	1,679,547	764,197
Noncontrolling interests – non-redeemable	418,684	361,359
Total equity	2,098,231	1,125,556
Total liabilities and equity	5,523,524	2,177,944
Consolidating Adjustments [Member]
Assets
Cash and cash equivalents	0	0	0	0
Restricted cash and marketable securities	0
Accounts receivable, net	0	0
Supplies inventory	0	0
Prepaid and other current assets	(4,818)	(4,362)
Total current assets	(4,818)	(4,362)
Property and equipment, net	0	0
Investments in and receivables from unconsolidated affiliates	(5,425,210)	(2,922,178)
Goodwill	1,890,168	1,758,970
Intangible assets, net	0	0
Other assets	(1,466)	0
Total assets	(3,541,326)	(1,167,570)
Liabilities and Equity
Current portion of long-term debt	0	0
Accounts payable	(4,080)	(3,958)
Accrued salaries and benefits	0	0
Accrued interest	0	0
Other accrued liabilities	(738)	(404)
Total current liabilities	(4,818)	(4,362)
Long-term debt	(28,412)	(31,377)
Deferred income taxes	(1,466)	0
Other long-term liabilities	0	0
Intercompany payable	(1,227,989)
Noncontrolling interests – redeemable	120,555	113,993
Equity:
Total AmSurg Corp. equity	(2,774,257)	(1,568,267)
Noncontrolling interests – non-redeemable	375,061	322,443
Total equity	(2,399,196)	(1,245,824)
Total liabilities and equity	(3,541,326)	(1,167,570)
Parent Company [Member]
Assets
Cash and cash equivalents	134,351	6,710	7,259	8,530
Restricted cash and marketable securities	0
Accounts receivable, net	0	0
Supplies inventory	0	33
Prepaid and other current assets	47,997	27,090
Total current assets	182,348	33,833
Property and equipment, net	10,391	6,024
Investments in and receivables from unconsolidated affiliates	3,912,804	1,484,108
Goodwill	0	0
Intangible assets, net	67,678	24,489
Other assets	3,323	866
Total assets	4,176,544	1,549,320
Liabilities and Equity
Current portion of long-term debt	8,700	10,714
Accounts payable	1,849	1,972
Accrued salaries and benefits	25,035	21,115
Accrued interest	29,621	1,847
Other accrued liabilities	8,051	4,457
Total current liabilities	73,256	40,105
Long-term debt	2,206,950	561,429
Deferred income taxes	209,400	176,020
Other long-term liabilities	7,391	7,569
Intercompany payable	0
Noncontrolling interests – redeemable	0	0
Equity:
Total AmSurg Corp. equity	1,679,547	764,197
Noncontrolling interests – non-redeemable	0	0
Total equity	1,679,547	764,197
Total liabilities and equity	4,176,544	1,549,320
Guarantor Subsidiaries [Member]
Assets
Cash and cash equivalents	23,471	0	0	0
Restricted cash and marketable securities	0
Accounts receivable, net	123,772	0
Supplies inventory	301	0
Prepaid and other current assets	58,388	0
Total current assets	205,932	0
Property and equipment, net	9,972	0
Investments in and receivables from unconsolidated affiliates	1,587,881	1,453,596
Goodwill	1,490,981	0
Intangible assets, net	1,203,218	0
Other assets	943	0
Total assets	4,498,927	1,453,596
Liabilities and Equity
Current portion of long-term debt	0	0
Accounts payable	35	0
Accrued salaries and benefits	101,395	0
Accrued interest	0	0
Other accrued liabilities	44,305	0
Total current liabilities	145,735	0
Long-term debt	0	0
Deferred income taxes	425,546	0
Other long-term liabilities	63,616	0
Intercompany payable	1,219,979
Noncontrolling interests – redeemable	0	0
Equity:
Total AmSurg Corp. equity	2,644,051	1,453,596
Noncontrolling interests – non-redeemable	0	0
Total equity	2,644,051	1,453,596
Total liabilities and equity	4,498,927	1,453,596
Non-Guarantor Subsidiaries [Member]
Assets
Cash and cash equivalents	50,257	44,130	39,139	32,188
Restricted cash and marketable securities	10,219
Accounts receivable, net	109,281	105,072
Supplies inventory	19,673	18,381
Prepaid and other current assets	13,795	13,971
Total current assets	203,225	181,554
Property and equipment, net	160,085	157,666
Investments in and receivables from unconsolidated affiliates	0	0
Goodwill	0	0
Intangible assets, net	2,983	3,378
Other assets	23,086	0
Total assets	389,379	342,598
Liabilities and Equity
Current portion of long-term debt	10,126	10,130
Accounts payable	31,781	29,487
Accrued salaries and benefits	13,614	11,179
Accrued interest	23	38
Other accrued liabilities	16,368	3,293
Total current liabilities	71,912	54,127
Long-term debt	53,648	53,246
Deferred income taxes	0	0
Other long-term liabilities	18,436	17,934
Intercompany payable	8,010
Noncontrolling interests – redeemable	63,544	63,704
Equity:
Total AmSurg Corp. equity	130,206	114,671
Noncontrolling interests – non-redeemable	43,623	38,916
Total equity	173,829	153,587
Total liabilities and equity	$ 389,379	$ 342,598