Financial Information for the Company and Its Subsidiaries (Balance Sheets) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014	Dec. 31, 2013
Assets
Cash and cash equivalents	$ 116,156	$ 208,079	$ 47,116	$ 50,840
Restricted cash and marketable securities	10,957	10,219
Accounts receivable, net	244,002	233,053
Supplies inventory	20,473	19,974
Prepaid and other current assets	97,361	115,362
Total current assets	488,949	586,687
Property and equipment, net	183,446	180,448
Investments in and receivables from unconsolidated affiliates	79,311	75,475
Goodwill	3,500,668	3,381,149
Intangible assets, net	1,306,267	1,273,879
Other assets	25,368	25,886
Total assets	5,584,009	5,523,524
Liabilities and Equity
Current portion of long-term debt	18,858	18,826
Accounts payable	25,808	29,585
Accrued salaries and benefits	144,607	140,044
Accrued interest	17,857	29,644
Other accrued liabilities	75,701	67,986
Total current liabilities	282,831	286,085
Long-term debt	2,229,994	2,232,186
Deferred income taxes	648,444	633,480
Other long-term liabilities	92,485	89,443
Intercompany payable	0	0
Noncontrolling interests – redeemable	183,459	184,099
Equity:
Total AmSurg Corp. equity	1,701,676	1,679,547
Noncontrolling interests – non-redeemable	445,120	418,684
Total equity	2,146,796	2,098,231
Total liabilities and equity	5,584,009	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	(5,719)	(4,818)
Total current assets	(5,719)	(4,818)
Property and equipment, net	0	0
Investments in and receivables from unconsolidated affiliates	(5,582,217)	(5,425,210)
Goodwill	1,950,704	1,890,168
Intangible assets, net	0	0
Other assets	0	(1,466)
Total assets	(3,637,232)	(3,541,326)
Liabilities and Equity
Current portion of long-term debt	0	0
Accounts payable	(4,927)	(4,080)
Accrued salaries and benefits	0	0
Accrued interest	0	0
Other accrued liabilities	(792)	(738)
Total current liabilities	(5,719)	(4,818)
Long-term debt	(30,985)	(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	(2,892,406)	(2,774,257)
Noncontrolling interests – non-redeemable	399,369	375,061
Total equity	(2,493,037)	(2,399,196)
Total liabilities and equity	(3,637,232)	(3,541,326)
Parent Company [Member]
Assets
Cash and cash equivalents	30,118	134,351	5,562	6,710
Restricted cash and marketable securities	0	0
Accounts receivable, net	0	0
Supplies inventory	0	0
Prepaid and other current assets	51,155	47,997
Total current assets	81,273	182,348
Property and equipment, net	11,910	10,391
Investments in and receivables from unconsolidated affiliates	4,025,683	3,912,804
Goodwill	0	0
Intangible assets, net	66,001	67,678
Other assets	3,734	3,323
Total assets	4,188,601	4,176,544
Liabilities and Equity
Current portion of long-term debt	8,700	8,700
Accounts payable	2,255	1,849
Accrued salaries and benefits	19,652	25,035
Accrued interest	17,840	29,621
Other accrued liabilities	7,272	8,051
Total current liabilities	55,719	73,256
Long-term debt	2,204,775	2,206,950
Deferred income taxes	218,564	209,400
Other long-term liabilities	7,867	7,391
Intercompany payable	0	0
Noncontrolling interests – redeemable	0	0
Equity:
Total AmSurg Corp. equity	1,701,676	1,679,547
Noncontrolling interests – non-redeemable	0	0
Total equity	1,701,676	1,679,547
Total liabilities and equity	4,188,601	4,176,544
Guarantor Subsidiaries [Member]
Assets
Cash and cash equivalents	38,681	23,471	0	0
Restricted cash and marketable securities	0	0
Accounts receivable, net	130,807	123,772
Supplies inventory	286	301
Prepaid and other current assets	32,196	58,388
Total current assets	201,970	205,932
Property and equipment, net	8,665	9,972
Investments in and receivables from unconsolidated affiliates	1,635,845	1,587,881
Goodwill	1,549,964	1,490,981
Intangible assets, net	1,237,487	1,203,218
Other assets	1,040	943
Total assets	4,634,971	4,498,927
Liabilities and Equity
Current portion of long-term debt	0	0
Accounts payable	224	35
Accrued salaries and benefits	111,525	101,395
Accrued interest	0	0
Other accrued liabilities	39,909	44,305
Total current liabilities	151,658	145,735
Long-term debt	0	0
Deferred income taxes	429,880	425,546
Other long-term liabilities	65,622	63,616
Intercompany payable	1,228,136	1,219,979
Noncontrolling interests – redeemable	0	0
Equity:
Total AmSurg Corp. equity	2,759,675	2,644,051
Noncontrolling interests – non-redeemable	0	0
Total equity	2,759,675	2,644,051
Total liabilities and equity	4,634,971	4,498,927
Non-Guarantor Subsidiaries [Member]
Assets
Cash and cash equivalents	47,357	50,257	41,554	44,130
Restricted cash and marketable securities	10,957	10,219
Accounts receivable, net	113,195	109,281
Supplies inventory	20,187	19,673
Prepaid and other current assets	19,729	13,795
Total current assets	211,425	203,225
Property and equipment, net	162,871	160,085
Investments in and receivables from unconsolidated affiliates	0	0
Goodwill	0	0
Intangible assets, net	2,779	2,983
Other assets	20,594	23,086
Total assets	397,669	389,379
Liabilities and Equity
Current portion of long-term debt	10,158	10,126
Accounts payable	28,256	31,781
Accrued salaries and benefits	13,430	13,614
Accrued interest	17	23
Other accrued liabilities	29,312	16,368
Total current liabilities	81,173	71,912
Long-term debt	56,204	53,648
Deferred income taxes	0	0
Other long-term liabilities	18,996	18,436
Intercompany payable	21	8,010
Noncontrolling interests – redeemable	62,793	63,544
Equity:
Total AmSurg Corp. equity	132,731	130,206
Noncontrolling interests – non-redeemable	45,751	43,623
Total equity	178,482	173,829
Total liabilities and equity	$ 397,669	$ 389,379