Financial Information for the Company and Its Subsidiaries (Balance Sheets) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Dec. 31, 2012
Assets
Cash and cash equivalents	$ 194,081	$ 50,840	$ 45,503	$ 46,398
Restricted cash and marketable securities	30,251	0
Accounts receivable, net	229,250	105,072
Supplies inventory	19,060	18,414
Prepaid and other current assets	128,319	36,699
Total current assets	600,961	211,025
Property and equipment, net	175,896	163,690
Investments in and receivables from unconsolidated affiliates	73,126	15,526
Goodwill	3,303,818	1,758,970
Intangible assets, net	1,261,952	27,867
Other assets	5,604	866
Total assets	5,421,357	2,177,944
Liabilities and Equity
Current portion of long-term debt	18,368	20,844
Accounts payable	24,453	27,501
Accrued salaries and benefits	133,050	32,294
Accrued interest	18,717	1,885
Other accrued liabilities	59,204	7,346
Total current liabilities	253,792	89,870
Long-term debt	2,230,314	583,298
Deferred income taxes	611,098	176,020
Other long-term liabilities	92,066	25,503
Intercompany payable	0
Noncontrolling interests – redeemable	176,516	177,697
Equity:
Total AmSurg Corp. equity	1,654,676	764,197
Noncontrolling interests – non-redeemable	402,895	361,359
Total equity	2,057,571	1,125,556
Total liabilities and equity	5,421,357	2,177,944
Consolidation, Eliminations [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	978	(4,362)
Total current assets	978	(4,362)
Property and equipment, net	0	0
Investments in and receivables from unconsolidated affiliates	(5,369,815)	(2,922,178)
Goodwill	1,834,621	1,758,970
Intangible assets, net	0	0
Other assets	(1,998)	0
Total assets	(3,536,214)	(1,167,570)
Liabilities and Equity
Current portion of long-term debt	0	0
Accounts payable	(4,188)	(3,958)
Accrued salaries and benefits	0	0
Accrued interest	0	0
Other accrued liabilities	(662)	(404)
Total current liabilities	(4,850)	(4,362)
Long-term debt	(30,646)	(31,377)
Deferred income taxes	(1,999)	0
Other long-term liabilities	0	0
Intercompany payable	(1,228,157)
Noncontrolling interests – redeemable	114,257	113,993
Equity:
Total AmSurg Corp. equity	(2,723,750)	(1,568,267)
Noncontrolling interests – non-redeemable	338,931	322,443
Total equity	(2,384,819)	(1,245,824)
Total liabilities and equity	(3,536,214)	(1,167,570)
Parent Company [Member]
Assets
Cash and cash equivalents	123,829	6,710	4,261	7,259
Restricted cash and marketable securities	0
Accounts receivable, net	0	0
Supplies inventory	45	33
Prepaid and other current assets	46,467	27,090
Total current assets	170,341	33,833
Property and equipment, net	10,294	6,024
Investments in and receivables from unconsolidated affiliates	3,875,039	1,484,108
Goodwill	0	0
Intangible assets, net	66,349	24,489
Other assets	2,831	866
Total assets	4,124,854	1,549,320
Liabilities and Equity
Current portion of long-term debt	8,700	10,714
Accounts payable	3,493	1,972
Accrued salaries and benefits	18,677	21,115
Accrued interest	18,697	1,847
Other accrued liabilities	5,132	4,457
Total current liabilities	54,699	40,105
Long-term debt	2,209,125	561,429
Deferred income taxes	199,194	176,020
Other long-term liabilities	7,160	7,569
Intercompany payable	0
Noncontrolling interests – redeemable	0	0
Equity:
Total AmSurg Corp. equity	1,654,676	764,197
Noncontrolling interests – non-redeemable	0	0
Total equity	1,654,676	764,197
Total liabilities and equity	4,124,854	1,549,320
Guarantor Subsidiaries [Member]
Assets
Cash and cash equivalents	25,270	0	0	0
Restricted cash and marketable securities	0
Accounts receivable, net	118,984	0
Supplies inventory	451	0
Prepaid and other current assets	68,766	0
Total current assets	213,471	0
Property and equipment, net	11,412	0
Investments in and receivables from unconsolidated affiliates	1,567,902	1,453,596
Goodwill	1,469,197	0
Intangible assets, net	1,192,678	0
Other assets	1,780	0
Total assets	4,456,440	1,453,596
Liabilities and Equity
Current portion of long-term debt	0	0
Accounts payable	0	0
Accrued salaries and benefits	99,198	0
Accrued interest	0	0
Other accrued liabilities	45,536	0
Total current liabilities	144,734	0
Long-term debt	0	0
Deferred income taxes	413,903	0
Other long-term liabilities	52,862	0
Intercompany payable	1,228,157
Noncontrolling interests – redeemable	0	0
Equity:
Total AmSurg Corp. equity	2,594,477	1,453,596
Noncontrolling interests – non-redeemable	22,307	0
Total equity	2,616,784	1,453,596
Total liabilities and equity	4,456,440	1,453,596
Non-Guarantor Subsidiaries [Member]
Assets
Cash and cash equivalents	44,982	44,130	41,242	39,139
Restricted cash and marketable securities	30,251
Accounts receivable, net	110,266	105,072
Supplies inventory	18,564	18,381
Prepaid and other current assets	12,108	13,971
Total current assets	216,171	181,554
Property and equipment, net	154,190	157,666
Investments in and receivables from unconsolidated affiliates	0	0
Goodwill	0	0
Intangible assets, net	2,925	3,378
Other assets	2,991	0
Total assets	376,277	342,598
Liabilities and Equity
Current portion of long-term debt	9,668	10,130
Accounts payable	25,148	29,487
Accrued salaries and benefits	15,175	11,179
Accrued interest	20	38
Other accrued liabilities	9,198	3,293
Total current liabilities	59,209	54,127
Long-term debt	51,835	53,246
Deferred income taxes	0	0
Other long-term liabilities	32,044	17,934
Intercompany payable	0
Noncontrolling interests – redeemable	62,259	63,704
Equity:
Total AmSurg Corp. equity	129,273	114,671
Noncontrolling interests – non-redeemable	41,657	38,916
Total equity	170,930	153,587
Total liabilities and equity	$ 376,277	$ 342,598