2.4.0.81010 - Disclosure - Generaltruefalsefalse1false falsefalseD2013Q2YTDhttp://www.sec.gov/CIK0001344154duration2013-01-01T00:00:002013-06-30T00:00:001true 1us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstractus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0General2false 2us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlockus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00<div style="font-size:10.0pt;font-family:Times New Roman;"> 1.     General   Basis of Presentation of Financial Statements   The accompanying interim consolidated financial statements for Envision Healthcare Corporation (formerly known as Emergency Medical Services Corporation) (“EVHC” or the “Company”) have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim reporting, and accordingly, do not include all of the disclosures required for annual financial statements.  In the opinion of management, the consolidated financial statements include all normal recurring adjustments necessary for a fair presentation of the periods presented.  Operating results for interim periods are not necessarily indicative of the results that may be expected for the full year ending December 31, 2013.  For further information, see the Company’s consolidated financial statements, including the accounting policies and notes thereto, included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2012.   On May 25, 2011, EVHC was acquired through a merger transaction (“Merger”) by investment funds (the “CD&R Affiliates”) sponsored by, or affiliated with, Clayton, Dubilier & Rice, LLC (“CD&R”).  As a result of the Merger, EVHC became a wholly-owned subsidiary of Envision Healthcare Intermediate Corporation (formerly known as CDRT Acquisition Corporation), which is a wholly-owned subsidiary of Envision Healthcare Holdings, Inc. (formerly known as CDRT Holding Corporation) (“Holding”), and the Company’s stock ceased to be traded on the New York Stock Exchange. The Company applied purchase accounting to the opening balance sheet and results of operations on May 25, 2011.   In June 2013, Emergency Medical Services Corporation’s name was changed to Envision Healthcare Corporation and CDRT Holding Corporation’s name was changed to Envision Healthcare Holdings, Inc.   The Company’s business is conducted primarily through two operating subsidiaries, EmCare Holdings Inc. (“EmCare”), its facility-based physician services segment, and American Medical Response, Inc. (“AMR”), its medical transportation services segment. </div>falsefalsefalsenonnum:textBlockItemTypenaThe entire disclosure for organization, consolidation and basis of presentation of financial statements disclosure.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Interpretation (FIN) -Number 46R -Paragraph 4, 14, 15 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. 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