Financial Information for the Company and Its Subsidiaries (Balance Sheets) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Assets
Cash and cash equivalents	$ 106,660	$ 208,079	$ 50,840	$ 46,398
Restricted cash and marketable securities	13,506	10,219
Accounts receivable, net	337,330	233,053
Supplies inventory	21,406	19,974
Prepaid and other current assets	75,771	92,900
Total current assets	554,673	564,225
Property and equipment, net	189,168	180,448
Investments in and receivables from unconsolidated affiliates	169,170	75,475
Goodwill	3,970,210	3,381,149	1,758,970
Intangible assets, net	1,641,811	1,273,879
Other assets	21,450	25,886
Total assets	6,546,482	5,501,062
Liabilities and Equity
Current portion of long-term debt	20,377	18,826
Accounts payable	32,561	29,585
Accrued salaries and benefits	202,537	140,044
Accrued interest	30,480	29,644
Other accrued liabilities	119,237	67,986
Total current liabilities	405,192	286,085
Long-term debt	2,405,130	2,232,186
Deferred income taxes	699,498	611,018
Other long-term liabilities	96,183	89,443
Intercompany payable	0	0
Noncontrolling interests – redeemable	175,732	184,099
Equity:
Total AmSurg Corp. equity	2,293,463	1,679,547
Noncontrolling interests – non-redeemable	471,284	418,684
Total equity	2,764,747	2,098,231
Total liabilities and equity	6,546,482	5,501,062
Consolidating Adjustments [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	(8,076)	(4,818)
Total current assets	(8,076)	(4,818)
Property and equipment, net	0	0
Investments in and receivables from unconsolidated affiliates	(6,507,128)	(5,425,210)
Goodwill	2,013,469	1,890,168
Intangible assets, net	0	0
Other assets	(1,998)	(1,466)
Total assets	(4,503,733)	(3,541,326)
Liabilities and Equity
Current portion of long-term debt	0	0
Accounts payable	(3,852)	(4,080)
Accrued salaries and benefits	0	0
Accrued interest	0	0
Other accrued liabilities	(4,224)	(738)
Total current liabilities	(8,076)	(4,818)
Long-term debt	(23,396)	(28,412)
Deferred income taxes	(1,998)	(1,466)
Other long-term liabilities	0	0
Intercompany payable	(1,228,157)	(1,227,989)
Noncontrolling interests – redeemable	112,672	120,555
Equity:
Total AmSurg Corp. equity	(3,778,478)	(2,774,257)
Noncontrolling interests – non-redeemable	423,700	375,061
Total equity	(3,354,778)	(2,399,196)
Total liabilities and equity	(4,503,733)	(3,541,326)
Parent Company [Member]
Assets
Cash and cash equivalents	20,437	134,351	6,710	7,259
Restricted cash and marketable securities	0	0
Accounts receivable, net	0	0
Supplies inventory	0	0
Prepaid and other current assets	28,739	46,097
Total current assets	49,176	180,448
Property and equipment, net	12,515	10,391
Investments in and receivables from unconsolidated affiliates	4,901,026	3,912,804
Goodwill	0	0
Intangible assets, net	59,928	67,678
Other assets	4,653	3,323
Total assets	5,027,298	4,174,644
Liabilities and Equity
Current portion of long-term debt	8,700	8,700
Accounts payable	2,816	1,849
Accrued salaries and benefits	31,510	25,035
Accrued interest	30,463	29,621
Other accrued liabilities	13,962	8,051
Total current liabilities	87,451	73,256
Long-term debt	2,373,251	2,206,950
Deferred income taxes	268,573	207,500
Other long-term liabilities	4,560	7,391
Intercompany payable	0	0
Noncontrolling interests – redeemable	0	0
Equity:
Total AmSurg Corp. equity	2,293,463	1,679,547
Noncontrolling interests – non-redeemable	0	0
Total equity	2,293,463	1,679,547
Total liabilities and equity	5,027,298	4,174,644
Guarantor Subsidiaries [Member]
Assets
Cash and cash equivalents	27,507	23,471	0	0
Restricted cash and marketable securities	0	0
Accounts receivable, net	223,434	123,772
Supplies inventory	0	301
Prepaid and other current assets	39,046	37,826
Total current assets	289,987	185,370
Property and equipment, net	14,601	9,972
Investments in and receivables from unconsolidated affiliates	1,775,272	1,587,881
Goodwill	1,956,741	1,490,981
Intangible assets, net	1,579,537	1,203,218
Other assets	1,717	943
Total assets	5,617,855	4,478,365
Liabilities and Equity
Current portion of long-term debt	0	0
Accounts payable	3,760	35
Accrued salaries and benefits	158,705	101,395
Accrued interest	0	0
Other accrued liabilities	76,590	44,305
Total current liabilities	239,055	145,735
Long-term debt	0	0
Deferred income taxes	432,923	404,984
Other long-term liabilities	71,509	63,616
Intercompany payable	1,228,157	1,219,979
Noncontrolling interests – redeemable	0	0
Equity:
Total AmSurg Corp. equity	3,646,211	2,644,051
Noncontrolling interests – non-redeemable	0	0
Total equity	3,646,211	2,644,051
Total liabilities and equity	5,617,855	4,478,365
Non-Guarantor Subsidiaries [Member]
Assets
Cash and cash equivalents	58,716	50,257	$ 44,130	$ 39,139
Restricted cash and marketable securities	13,506	10,219
Accounts receivable, net	113,896	109,281
Supplies inventory	21,406	19,673
Prepaid and other current assets	16,062	13,795
Total current assets	223,586	203,225
Property and equipment, net	162,052	160,085
Investments in and receivables from unconsolidated affiliates	0	0
Goodwill	0	0
Intangible assets, net	2,346	2,983
Other assets	17,078	23,086
Total assets	405,062	389,379
Liabilities and Equity
Current portion of long-term debt	11,677	10,126
Accounts payable	29,837	31,781
Accrued salaries and benefits	12,322	13,614
Accrued interest	17	23
Other accrued liabilities	32,909	16,368
Total current liabilities	86,762	71,912
Long-term debt	55,275	53,648
Deferred income taxes	0	0
Other long-term liabilities	20,114	18,436
Intercompany payable	0	8,010
Noncontrolling interests – redeemable	63,060	63,544
Equity:
Total AmSurg Corp. equity	132,267	130,206
Noncontrolling interests – non-redeemable	47,584	43,623
Total equity	179,851	173,829
Total liabilities and equity	$ 405,062	$ 389,379