Shareholder's Equity (Schedule Of Reconciliation Of Numerator And Denominators Of Basic And Diluted Earnings Per Share) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Shareholders' Equity
Net earnings from continuing operations attributable to AmSurg Corp., Earnings (Numerator)	$ 15,690	$ 15,281	$ 16,060	$ 15,554	$ 13,552	$ 12,847	$ 12,535	$ 11,460	$ 62,585	$ 50,394	$ 49,998
Net earnings attributable to AmSurg Corp., Earnings (Numerator)	$ 16,814	$ 15,437	$ 15,536	$ 14,776	$ 13,548	$ 13,126	$ 11,630	$ 11,693	$ 62,563	$ 49,997	$ 49,825
Net earnings from continuing operations attributable to AmSurg Corp. (Basic), Shares (Denominator)									30,773	30,452	30,255
Net earnings from continuing operations attributable to AmSurg Corp. (Diluted), Shares (Denominator)									31,608	31,211	30,689
Dilutive Securities, Effect on Basic Earnings Per Share									835,000	759,000	434,000
Net earnings from continuing operations attributable to AmSurg Corp. per common share (basic), Per Share Amount									$ 2.03	$ 1.65	$ 1.65
Net earnings from continuing operations attributable to AmSurg Corp. per common share (diluted), Per Share Amount	$ 0.49	$ 0.48	$ 0.51	$ 0.50	$ 0.43	$ 0.41	$ 0.40	$ 0.37	$ 1.98	$ 1.61	$ 1.63
Net earnings attributable to AmSurg Corp. per common share (Diluted), Per Share Amount	$ 0.53	$ 0.49	$ 0.49	$ 0.47	$ 0.43	$ 0.42	$ 0.37	$ 0.38	$ 1.98	$ 1.60	$ 1.62
Net earnings attributable to AmSurg Corp. per common share (basic), Per Share Amount									$ 2.03	$ 1.64	$ 1.65