Basis of Presentation	3 Months Ended
Mar. 31, 2012
Basis of Presentation
Basis of Presentation	(1) Basis of Presentation AmSurg Corp. (the “Company”), through its wholly owned subsidiaries, owns interests, primarily 51%, in limited partnerships and limited liability companies (“LLCs”) which own and operate ambulatory surgery centers (“centers”). The Company also has majority ownership interests in other limited partnerships and LLCs formed to develop additional centers. The Company does not have an ownership interest in a limited partnership or LLC greater than 51% which it does not consolidate. The Company does have an ownership interest of less than 51% in three limited partnerships and LLC's, one of which it consolidates as the Company has substantive participation rights and two of which it does not consolidate as the Company owns 20% of each entity and the Company's rights are limited to protective rights only. The consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries and the consolidated limited partnerships and LLCs. Consolidation of such limited partnerships and LLCs is necessary as the Company's wholly owned subsidiaries have primarily 51% or more of the financial interest, are the general partner or majority member with all the duties, rights and responsibilities thereof, are responsible for the day-to-day management of the limited partnerships and LLCs, and have control of the entities. The responsibilities of the Company's noncontrolling partners (limited partners and noncontrolling members) are to supervise the delivery of medical services, with their rights being restricted to those that protect their financial interests, such as approval of the acquisition of significant assets or the incurrence of debt which they are generally required to guarantee on a pro rata basis based upon their respective ownership interests. Intercompany profits, transactions and balances have been eliminated. All limited partnerships and LLCs and noncontrolling partners are referred to herein as partnerships and partners, respectively. Ownership interests in consolidated subsidiaries held by parties other than the Company are identified and generally presented in the consolidated financial statements within the equity section but separate from the Company's equity. However, in instances in which certain redemption features that are not solely within the control of the Company are present, classification of noncontrolling interests outside of permanent equity is required. Consolidated net income attributable to the Company and to the noncontrolling interests are identified and presented on the face of the consolidated statements of income; changes in ownership interests are accounted for as equity transactions; and when a subsidiary is deconsolidated, any retained noncontrolling equity investment in the former subsidiary and the gain or loss on the deconsolidation of the subsidiary is measured at fair value. Certain transactions with noncontrolling interests are also classified within financing activities in the statements of cash flows. As further described in note 12, upon the occurrence of various fundamental regulatory changes, the Company would be obligated, under the terms of certain partnership and operating agreements, to purchase the noncontrolling interests related to a substantial majority of the Company's partnerships. While the Company believes that the likelihood of a change in current law that would trigger such purchases was remote as of March 31, 2012, the occurrence of such regulatory changes is outside the control of the Company. As a result, these noncontrolling interests that are subject to this redemption feature are not included as part of the Company's equity and are classified as noncontrolling interests – redeemable on the Company's consolidated balance sheets. Center profits and losses of consolidated entities are allocated to the Company's partners in proportion to their ownership percentages and reflected in the aggregate as net earnings attributable to noncontrolling interests. The partners of the Company's center partnerships typically are organized as general partnerships, limited partnerships or limited liability companies that are not subject to federal income tax. Each partner shares in the pre-tax earnings of the center in which it is a partner. Accordingly, the earnings attributable to noncontrolling interests in each of the Company's consolidated partnerships are generally determined on a pre-tax basis, and total net earnings attributable to noncontrolling interests are presented after net earnings. However, the Company considers the impact of the net earnings attributable to noncontrolling interests on earnings before income taxes in order to determine the amount of pre-tax earnings on which the Company must determine its tax expense. In addition, distributions from the partnerships are made to both the Company's wholly owned subsidiaries and the partners on a pre-tax basis. Investments in unconsolidated affiliates in which the Company exerts significant influence but does not control or otherwise consolidate are accounted for using the equity method. These investments are included as investments in unconsolidated affiliates and long-term notes receivable in the accompanying consolidated balance sheets. The Company's share of the profits and losses from these investments are reported in equity in earnings of unconsolidated affiliates in the accompanying consolidated statement of earnings. The Company monitors its investments for other-than-temporary impairment by considering factors such as current economic and market conditions and the operating performance of the companies and records reductions in carrying values when necessary. The Company operates in one reportable business segment, the ownership and operation of ambulatory surgery centers. These unaudited financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial reporting and in accordance with Rule 10-01 of Regulation S-X. In the opinion of management, the unaudited interim financial statements contained in this report reflect all adjustments, consisting of only normal recurring accruals, which are necessary for a fair presentation of the financial position and the results of operations for the interim periods presented. The results of operations for any interim period are not necessarily indicative of results for the full year. The accompanying unaudited consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in the Company's 2011 Annual Report on Form 10-K.

Basis of Presentation

3 Months Ended

Mar. 31, 2012

(1) Basis of Presentation

AmSurg Corp. (the “Company”), through its wholly owned subsidiaries, owns interests, primarily 51%, in limited partnerships and limited liability companies (“LLCs”) which own and operate ambulatory surgery centers (“centers”). The Company also has majority ownership interests in other limited partnerships and LLCs formed to develop additional centers. The Company does not have an ownership interest in a limited partnership or LLC greater than 51% which it does not consolidate. The Company does have an ownership interest of less than 51% in three limited partnerships and LLC's, one of which it consolidates as the Company has substantive participation rights and two of which it does not consolidate as the Company owns 20% of each entity and the Company's rights are limited to protective rights only. The consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries and the consolidated limited partnerships and LLCs. Consolidation of such limited partnerships and LLCs is necessary as the Company's wholly owned subsidiaries have primarily 51% or more of the financial interest, are the general partner or majority member with all the duties, rights and responsibilities thereof, are responsible for the day-to-day management of the limited partnerships and LLCs, and have control of the entities. The responsibilities of the Company's noncontrolling partners (limited partners and noncontrolling members) are to supervise the delivery of medical services, with their rights being restricted to those that protect their financial interests, such as approval of the acquisition of significant assets or the incurrence of debt which they are generally required to guarantee on a pro rata basis based upon their respective ownership interests. Intercompany profits, transactions and balances have been eliminated. All limited partnerships and LLCs and noncontrolling partners are referred to herein as partnerships and partners, respectively.

Ownership interests in consolidated subsidiaries held by parties other than the Company are identified and generally presented in the consolidated financial statements within the equity section but separate from the Company's equity. However, in instances in which certain redemption features that are not solely within the control of the Company are present, classification of noncontrolling interests outside of permanent equity is required. Consolidated net income attributable to the Company and to the noncontrolling interests are identified and presented on the face of the consolidated statements of income; changes in ownership interests are accounted for as equity transactions; and when a subsidiary is deconsolidated, any retained noncontrolling equity investment in the former subsidiary and the gain or loss on the deconsolidation of the subsidiary is measured at fair value. Certain transactions with noncontrolling interests are also classified within financing activities in the statements of cash flows.

As further described in note 12, upon the occurrence of various fundamental regulatory changes, the Company would be obligated, under the terms of certain partnership and operating agreements, to purchase the noncontrolling interests related to a substantial majority of the Company's partnerships. While the Company believes that the likelihood of a change in current law that would trigger such purchases was remote as of March 31, 2012, the occurrence of such regulatory changes is outside the control of the Company. As a result, these noncontrolling interests that are subject to this redemption feature are not included as part of the Company's equity and are classified as noncontrolling interests – redeemable on the Company's consolidated balance sheets.

Center profits and losses of consolidated entities are allocated to the Company's partners in proportion to their ownership percentages and reflected in the aggregate as net earnings attributable to noncontrolling interests. The partners of the Company's center partnerships typically are organized as general partnerships, limited partnerships or limited liability companies that are not subject to federal income tax. Each partner shares in the pre-tax earnings of the center in which it is a partner. Accordingly, the earnings attributable to noncontrolling interests in each of the Company's consolidated partnerships are generally determined on a pre-tax basis, and total net earnings attributable to noncontrolling interests are presented after net earnings. However, the Company considers the impact of the net earnings attributable to noncontrolling interests on earnings before income taxes in order to determine the amount of pre-tax earnings on which the Company must determine its tax expense. In addition, distributions from the partnerships are made to both the Company's wholly owned subsidiaries and the partners on a pre-tax basis.

Investments in unconsolidated affiliates in which the Company exerts significant influence but does not control or otherwise consolidate are accounted for using the equity method. These investments are included as investments in unconsolidated affiliates and long-term notes receivable in the accompanying consolidated balance sheets. The Company's share of the profits and losses from these investments are reported in equity in earnings of unconsolidated affiliates in the accompanying consolidated statement of earnings. The Company monitors its investments for other-than-temporary impairment by considering factors such as current economic and market conditions and the operating performance of the companies and records reductions in carrying values when necessary.

The Company operates in one reportable business segment, the ownership and operation of ambulatory surgery centers.

These unaudited financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial reporting and in accordance with Rule 10-01 of Regulation S-X. In the opinion of management, the unaudited interim financial statements contained in this report reflect all adjustments, consisting of only normal recurring accruals, which are necessary for a fair presentation of the financial position and the results of operations for the interim periods presented. The results of operations for any interim period are not necessarily indicative of results for the full year.

The accompanying unaudited consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in the Company's 2011 Annual Report on Form 10-K.