Description of Business and Basis of Presentation	12 Months Ended
Dec. 31, 2019
Accounting Policies [Abstract]
Description of Business and Basis of Presentation	1. Description of Business and Basis of Presentation Description of Business Acadia Healthcare Company, Inc. (the “Company”) develops and operates inpatient psychiatric facilities, residential treatment centers, group homes, substance abuse facilities and facilities providing outpatient behavioral healthcare services to serve the behavioral health and recovery needs of communities throughout the United States (“U.S.”), the United Kingdom (“U.K.”) and Puerto Rico. At December 31, 2019, the Company operated 585 behavioral healthcare facilities with approximately 18,200 beds in 40 states, the U.K. and Puerto Rico. During 2019, the Company commenced a review of strategic alternatives including those related to its U.K. operations and a potential sale of such operations. In January 2020, the Company launched a formal process regarding the sale of its U.K. business. Consistent with market practice for U.K. transactions of this nature, and in conjunction with its advisors, the Company solicited and has received initial, non-binding offers to acquire its U.K. business from multiple bidders. The Company is now in the second phase of the sale process, during which interested bidders will receive proposed transaction documents and complete their confirmatory due diligence. Basis of Presentation The business of the Company is conducted through limited liability companies, partnerships and C-corporations. The Company’s consolidated financial statements include the accounts of the Company and all subsidiaries controlled by the Company through its’ direct or indirect ownership of majority interests and exclusive rights granted to the Company as the controlling member of an entity. All intercompany accounts and transactions have been eliminated in consolidation. The accompanying consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”). The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could differ from those estimates. The majority of the Company’s expenses are “cost of revenue” items. Costs that could be classified as general and administrative expenses include the Company’s corporate office costs, which were $90.4 million, $86.6 million and $76.4 million for the years ended December 31, 2019, 2018 and 2017, respectively. Certain reclassifications have been made to prior years to conform to the current year presentation.

Description of Business and Basis of Presentation

12 Months Ended

Dec. 31, 2019

Description of Business and Basis of Presentation

1. Description of Business and Basis of Presentation

Description of Business

Acadia Healthcare Company, Inc. (the “Company”) develops and operates inpatient psychiatric facilities, residential treatment centers, group homes, substance abuse facilities and facilities providing outpatient behavioral healthcare services to serve the behavioral health and recovery needs of communities throughout the United States (“U.S.”), the United Kingdom (“U.K.”) and Puerto Rico. At December 31, 2019, the Company operated 585 behavioral healthcare facilities with approximately 18,200 beds in 40 states, the U.K. and Puerto Rico.

During 2019, the Company commenced a review of strategic alternatives including those related to its U.K. operations and a potential sale of such operations. In January 2020, the Company launched a formal process regarding the sale of its U.K. business. Consistent with market practice for U.K. transactions of this nature, and in conjunction with its advisors, the Company solicited and has received initial, non-binding offers to acquire its U.K. business from multiple bidders. The Company is now in the second phase of the sale process, during which interested bidders will receive proposed transaction documents and complete their confirmatory due diligence.

Basis of Presentation

The business of the Company is conducted through limited liability companies, partnerships and C-corporations. The Company’s consolidated financial statements include the accounts of the Company and all subsidiaries controlled by the Company through its’ direct or indirect ownership of majority interests and exclusive rights granted to the Company as the controlling member of an entity. All intercompany accounts and transactions have been eliminated in consolidation.

The accompanying consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”). The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could differ from those estimates. The majority of the Company’s expenses are “cost of revenue” items. Costs that could be classified as general and administrative expenses include the Company’s corporate office costs, which were $90.4 million, $86.6 million and $76.4 million for the years ended December 31, 2019, 2018 and 2017, respectively.

Certain reclassifications have been made to prior years to conform to the current year presentation.