Financial Information for the Company and Its Subsidiaries (Balance Sheets) (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015	Jun. 30, 2015	Dec. 31, 2014
Assets
Cash and cash equivalents	$ 74,105	$ 106,660	$ 126,289	$ 208,079
Restricted cash and marketable securities	12,794	13,506
Accounts receivable, net	375,352	337,330
Supplies inventory	21,980	21,406
Prepaid and other current assets	74,565	75,771
Total current assets	558,796	554,673
Property and equipment, net	204,922	189,168
Investments in and receivables from unconsolidated affiliates	179,056	169,170
Goodwill	4,175,008	3,970,210
Intangible assets, net	1,679,275	1,594,637
Other assets	46,263	21,450
Total assets	6,843,320	6,499,308
Liabilities and Equity
Current portion of long-term debt	20,772	20,377
Accounts payable	30,721	32,561
Accrued salaries and benefits	186,908	202,537
Accrued interest	30,400	30,480
Other accrued liabilities	92,571	119,237
Total current liabilities	361,372	405,192
Long-term debt	2,581,043	2,357,956
Deferred income taxes	743,447	699,498
Other long-term liabilities	119,478	96,183
Intercompany payable	0	0
Noncontrolling interests – redeemable	177,845	175,732
Equity:
Total AmSurg Corp. equity	2,377,278	2,293,463
Noncontrolling interests – non-redeemable	482,857	471,284
Total equity	2,860,135	2,764,747
Total liabilities and equity	6,843,320	6,499,308
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	(21,312)	(8,076)
Total current assets	(21,312)	(8,076)
Property and equipment, net	0	0
Investments in and receivables from unconsolidated affiliates	(6,848,343)	(6,507,128)
Goodwill	2,051,941	2,013,469
Intangible assets, net	0	0
Other assets	(1,999)	(1,998)
Total assets	(4,819,713)	(4,503,733)
Liabilities and Equity
Current portion of long-term debt	0	0
Accounts payable	(3,561)	(3,852)
Accrued salaries and benefits	0	0
Accrued interest	0	0
Other accrued liabilities	(17,751)	(4,224)
Total current liabilities	(21,312)	(8,076)
Long-term debt	(26,054)	(23,396)
Deferred income taxes	(1,998)	(1,998)
Other long-term liabilities	0	0
Intercompany payable	(1,228,157)	(1,228,157)
Noncontrolling interests – redeemable	116,959	112,672
Equity:
Total AmSurg Corp. equity	(4,092,881)	(3,778,478)
Noncontrolling interests – non-redeemable	433,730	423,700
Total equity	(3,659,151)	(3,354,778)
Total liabilities and equity	(4,819,713)	(4,503,733)
Parent Company [Member]
Assets
Cash and cash equivalents	4,591	20,437	43,658	134,351
Restricted cash and marketable securities	0	0
Accounts receivable, net	0	0
Supplies inventory	0	0
Prepaid and other current assets	45,542	28,739
Total current assets	50,133	49,176
Property and equipment, net	11,877	12,515
Investments in and receivables from unconsolidated affiliates	5,219,975	4,901,026
Goodwill	0	0
Intangible assets, net	13,037	12,780
Other assets	7,186	4,653
Total assets	5,302,208	4,980,150
Liabilities and Equity
Current portion of long-term debt	8,700	8,700
Accounts payable	3,073	2,816
Accrued salaries and benefits	29,533	31,510
Accrued interest	30,386	30,463
Other accrued liabilities	5,171	13,962
Total current liabilities	76,863	87,451
Long-term debt	2,550,996	2,326,103
Deferred income taxes	288,503	268,573
Other long-term liabilities	8,568	4,560
Intercompany payable	0	0
Noncontrolling interests – redeemable	0	0
Equity:
Total AmSurg Corp. equity	2,377,278	2,293,463
Noncontrolling interests – non-redeemable	0	0
Total equity	2,377,278	2,293,463
Total liabilities and equity	5,302,208	4,980,150
Guarantor Subsidiaries [Member]
Assets
Cash and cash equivalents	16,215	27,507	27,112	23,471
Restricted cash and marketable securities	0	0
Accounts receivable, net	258,863	223,434
Supplies inventory	0	0
Prepaid and other current assets	24,074	39,046
Total current assets	299,152	289,987
Property and equipment, net	27,822	14,601
Investments in and receivables from unconsolidated affiliates	1,807,424	1,775,272
Goodwill	2,123,067	1,956,741
Intangible assets, net	1,664,313	1,579,537
Other assets	20,825	1,717
Total assets	5,942,603	5,617,855
Liabilities and Equity
Current portion of long-term debt	20	0
Accounts payable	1,640	3,760
Accrued salaries and benefits	140,149	158,705
Accrued interest	0	0
Other accrued liabilities	69,166	76,590
Total current liabilities	210,975	239,055
Long-term debt	36	0
Deferred income taxes	456,942	432,923
Other long-term liabilities	76,144	71,509
Intercompany payable	1,228,157	1,228,157
Noncontrolling interests – redeemable	0	0
Equity:
Total AmSurg Corp. equity	3,967,431	3,646,211
Noncontrolling interests – non-redeemable	2,918	0
Total equity	3,970,349	3,646,211
Total liabilities and equity	5,942,603	5,617,855
Non-Guarantor Subsidiaries [Member]
Assets
Cash and cash equivalents	53,299	58,716	$ 55,519	$ 50,257
Restricted cash and marketable securities	12,794	13,506
Accounts receivable, net	116,489	113,896
Supplies inventory	21,980	21,406
Prepaid and other current assets	26,261	16,062
Total current assets	230,823	223,586
Property and equipment, net	165,223	162,052
Investments in and receivables from unconsolidated affiliates	0	0
Goodwill	0	0
Intangible assets, net	1,925	2,320
Other assets	20,251	17,078
Total assets	418,222	405,036
Liabilities and Equity
Current portion of long-term debt	12,052	11,677
Accounts payable	29,569	29,837
Accrued salaries and benefits	17,226	12,322
Accrued interest	14	17
Other accrued liabilities	35,985	32,909
Total current liabilities	94,846	86,762
Long-term debt	56,065	55,249
Deferred income taxes	0	0
Other long-term liabilities	34,766	20,114
Intercompany payable	0	0
Noncontrolling interests – redeemable	60,886	63,060
Equity:
Total AmSurg Corp. equity	125,450	132,267
Noncontrolling interests – non-redeemable	46,209	47,584
Total equity	171,659	179,851
Total liabilities and equity	$ 418,222	$ 405,036