Acadia Healthcare (ACHC) 10-Q 30 Oct 14 2014 Q3 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	9 Months Ended
	Sep. 30, 2014	Oct. 30, 2014
Document And Entity Information [Abstract]	'	'
Document Type	'10-Q	'
Amendment Flag	'false	'
Document Period End Date	30-Sep-14	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q3	'
Trading Symbol	'ACHC	'
Entity Registrant Name	'Acadia Healthcare Company, Inc.	'
Entity Central Index Key	'0001520697	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Large Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	59,918,574

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (Unaudited) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Current assets:	'	'
Cash and cash equivalents	$42,179	$4,569
Accounts receivable, net of allowance for doubtful accounts of $21,730 and $18,345, respectively	130,253	95,885
Deferred tax assets	19,782	15,703
Other current assets	37,626	28,969
Total current assets	229,840	145,126
Property and equipment, net	1,026,378	370,109
Goodwill	804,647	661,549
Intangible assets, net	21,621	20,568
Deferred tax assets - noncurrent	15,933	'
Other assets	42,049	27,307
Total assets	2,140,468	1,224,659
Current liabilities:	'	'
Current portion of long-term debt	13,320	15,195
Accounts payable	43,260	36,026
Accrued salaries and benefits	56,213	37,721
Other accrued liabilities	29,747	25,748
Total current liabilities	142,540	114,690
Long-term debt	1,016,002	601,941
Deferred tax liabilities - noncurrent	64,771	7,971
Other liabilities	30,579	19,347
Total liabilities	1,253,892	743,949
Equity:	'	'
Preferred stock, $0.01 par value; 10,000,000 shares authorized, no shares issued	'	'
Common stock, $0.01 par value; 90,000,000 shares authorized; 59,182,578 and 50,070,980 issued and outstanding as of September 30, 2014 and December 31, 2013, respectively	592	501
Additional paid-in capital	843,528	461,807
Accumulated other comprehensive loss	-36,857	0
Retained earnings	79,313	18,402
Total equity	886,576	480,710
Total liabilities and equity	$2,140,468	$1,224,659

Condensed_Consolidated_Balance1

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, except Share data, unless otherwise specified
Statement of Financial Position [Abstract]	'	'
Receivable, allowance for doubtful accounts	$21,730	$18,345
Preferred stock, par value	$0.01	$0.01
Preferred stock, authorized	10,000,000	10,000,000
Preferred stock, issued	0	0
Common stock, par value	$0.01	$0.01
Common stock, shares authorized	90,000,000	90,000,000
Common stock, shares issued	59,182,578	50,070,980
Common stock, shares outstanding	59,182,578	50,070,980

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Income (Unaudited) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Income Statement [Abstract]	'	'	'	'
Revenue before provision for doubtful accounts	$303,001	$190,574	$729,784	$539,230
Provision for doubtful accounts	-8,522	-5,872	-20,084	-15,821
Revenue	294,479	184,702	709,700	523,409
Salaries, wages and benefits (including equity-based compensation expense of $2,805, $1,331, $6,975 and $3,744, respectively)	168,632	103,789	408,680	298,904
Professional fees	14,878	8,956	36,151	27,294
Supplies	14,062	9,806	34,722	28,017
Rents and leases	3,214	2,656	8,872	7,377
Other operating expenses	31,432	22,345	79,188	59,424
Depreciation and amortization	10,325	4,414	21,696	12,248
Interest expense, net	14,068	9,465	33,505	27,672
Debt extinguishment costs	'	'	'	9,350
Gain on foreign currency derivatives	-1,527	'	-15,262	'
Transaction-related expenses	6,239	984	10,834	3,813
Total expenses	261,323	162,415	618,386	474,099
Income from continuing operations before income taxes	33,156	22,287	91,314	49,310
Provision for income taxes	7,703	7,741	30,383	18,439
Income (loss) from continuing operations	25,453	14,546	60,931	30,871
Loss from discontinued operations, net of income taxes	-51	-182	-20	-572
Net income	$25,402	$14,364	$60,911	$30,299
Basic earnings per share:	'	'	'	'
Income from continuing operations	$0.43	$0.29	$1.14	$0.62
Loss from discontinued operations	'	'	'	($0.01)
Net income	$0.43	$0.29	$1.14	$0.61
Diluted earnings per share:	'	'	'	'
Income from continuing operations	$0.43	$0.29	$1.13	$0.61
Loss from discontinued operations	'	'	'	($0.01)
Net income	$0.43	$0.29	$1.13	$0.60
Weighted-average shares outstanding:	'	'	'	'
Basic	59,175	50,040	53,670	49,987
Diluted	59,409	50,343	53,922	50,213

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements of Income (Unaudited) (Parenthetical) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Income Statement [Abstract]	'	'	'	'
Equity-based compensation expense	$2,805	$1,331	$6,975	$3,744

Condensed_Consolidated_Stateme2

Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Statement of Comprehensive Income [Abstract]	'	'	'	'
Net income	$25,402	$14,364	$60,911	$30,299
Other comprehensive loss:	'	'	'	'
Foreign currency translation loss	-36,857	'	-36,857	'
Other comprehensive loss	-36,857	'	-36,857	'
Comprehensive (loss) income	($11,455)	$14,364	$24,054	$30,299

Condensed_Consolidated_Stateme3

Condensed Consolidated Statement of Equity (Unaudited) (USD $)	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Loss [Member]	Retained Earnings [Member]
In Thousands, except Share data
Balance at Dec. 31, 2013	$480,710	$501	$461,807	'	$18,402
Balance, shares at Dec. 31, 2013	'	50,071,000	'	'	'
Common stock issued under stock incentive plans	570	2	568	'	'
Common stock issued under stock incentive plans, shares , shares	182,888	230,000	'	'	'
Common stock withheld for minimum statutory taxes	-4,047	'	-4,047	'	'
Equity-based compensation expense	6,975	'	6,975	'	'
Excess tax benefit from equity awards	3,779	'	3,779	'	'
Issuance of common stock, net	374,431	89	374,342	'	'
Issuance of common stock, net, shares	'	8,882,000	'	'	'
Other	104	'	104	'	'
Other comprehensive loss	-36,857	'	'	-36,857	'
Net income	60,911	'	'	'	60,911
Balance at Sep. 30, 2014	$886,576	$592	$843,528	($36,857)	$79,313
Balance, shares at Sep. 30, 2014	'	59,183,000	'	'	'

Condensed_Consolidated_Stateme4

Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Operating activities:	'	'
Net income	$60,911	$30,299
Adjustments to reconcile net income to net cash provided by continuing operating activities:	'	'
Depreciation and amortization	21,696	12,248
Amortization of debt issuance costs	2,229	1,686
Equity-based compensation expense	6,975	3,744
Deferred income tax expense	4,645	10,545
Loss from discontinued operations, net of taxes	20	572
Debt extinguishment costs	'	9,350
Gain on foreign currency derivatives	-15,262	'
Other	163	16
Change in operating assets and liabilities, net of effect of acquisitions:	'	'
Accounts receivable, net	-25,395	-18,378
Other current assets	1,322	-5,657
Other assets	-2,086	-1,676
Accounts payable and other accrued liabilities	1,078	2,596
Accrued salaries and benefits	8,972	-2,114
Other liabilities	3,805	3,538
Net cash (used in) provided by continuing operating activities	69,073	46,769
Net cash used in discontinued operating activities	-27	-541
Net cash provided by operating activities	69,046	46,228
Investing activities:	'	'
Cash paid for acquisitions, net of cash acquired	-722,797	-135,605
Cash paid for capital expenditures	-70,680	-50,678
Cash paid for real estate acquisitions	-22,247	-4,676
Settlement of foreign currency derivatives	15,262	'
Other	-733	-1,088
Net cash used in investing activities	-801,195	-192,047
Financing activities:	'	'
Borrowings on long-term debt	307,500	150,000
Borrowings on revolving credit facility	230,500	27,500
Principal payments on revolving credit facility	-120,000	-8,000
Principal payments on long-term debt	-5,625	-5,625
Repayment of long-term debt	'	-52,500
Payment of debt issuance costs	-10,909	-4,307
Payment of premium on note redemption	'	-6,759
Issuance of common stock, net	374,431	'
Common stock withheld for minimum statutory taxes, net	-3,477	-1,120
Excess tax benefit from equity awards	3,779	1,265
Cash paid for contingent consideration	-5,000	'
Net cash provided by (used in) financing activities	771,199	100,454
Effect of exchange rate changes on cash	-1,440	'
Net increase (decrease) in cash and cash equivalents	37,610	-45,365
Cash and cash equivalents at beginning of the period	4,569	49,399
Cash and cash equivalents at end of the period	42,179	4,034
Effect of acquisitions:	'	'
Assets acquired, excluding cash	802,767	163,706
Liabilities assumed	-78,003	-16,417
Prior year deposits paid for acquisitions	-500	-11,684
Contingent consideration issued in connection with acquisition	-1,467	'
Cash paid for acquisitions, net of cash acquired	$722,797	$135,605

Description_of_Business_and_Ba

Description of Business and Basis of Presentation	9 Months Ended
	Sep. 30, 2014
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. At September 30, 2014, the Company operated 76 behavioral healthcare facilities with approximately 5,800 licensed beds in 24 states, the United Kingdom and Puerto Rico.
	Basis of Presentation
	The business of the Company is conducted through limited liability companies and C-corporations, each of which is a direct or indirect wholly-owned subsidiary of the Company. The Company’s consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries, all of which are 100% owned. 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”) for interim financial information. Accordingly, they do not include all of the information and notes required by GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for fair presentation of our financial position and results of operations have been included. The Company’s fiscal year ends on December 31 and interim results are not necessarily indicative of results for a full year or any other interim period. The condensed consolidated balance sheet at December 31, 2013 has been derived from the audited financial statements as of that date. The information contained in these condensed consolidated financial statements should be read in conjunction with the Company’s consolidated financial statements and notes thereto for the fiscal year ended December 31, 2013 included in the Company’s Annual Report on Form 10-K filed with the Securities and Exchange Commission on February 21, 2014. 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.
	Certain reclassifications have been made to prior years to conform to the current year presentation.

Earnings_Per_Share

Earnings Per Share	9 Months Ended
	Sep. 30, 2014
Earnings Per Share [Abstract]	'
Earnings Per Share	'
	2	Earnings Per Share
	Basic and diluted earnings per share are calculated in accordance with Financial Accounting Standards Board Accounting Standards Codification Topic 260, “Earnings Per Share,” based on the weighted-average number of shares outstanding in each period and dilutive stock options, unvested shares and warrants, to the extent such securities have a dilutive effect on earnings per share.
	The following table sets forth the computation of basic and diluted earnings per share for the three and nine months ended September 30, 2014 and 2013 (in thousands except per share amounts):
			Three Months Ended						Nine Months Ended
			September 30,						September 30,
			2014			2013			2014			2013
	Numerator:
	Basic and diluted earnings per share:
	Income from continuing operations		$	25,453		$	14,546		$	60,931		$	30,871
	Loss from discontinued operations			(51	)		(182	)		(20	)		(572	)
	Net income		$	25,402		$	14,364		$	60,911		$	30,299
	Denominator:
	Weighted average shares outstanding for basic earnings per share			59,175			50,040			53,670			49,987
	Effect of dilutive instruments			234			303			252			226
	Shares used in computing diluted earnings per common share			59,409			50,343			53,922			50,213
	Basic earnings per share:
	Income from continuing operations		$	0.43		$	0.29		$	1.14		$	0.62
	Loss from discontinued operations			—			—			—			(0.01	)
	Net income		$	0.43		$	0.29		$	1.14		$	0.61
	Diluted earnings per share:
	Income from continuing operations		$	0.43		$	0.29		$	1.13		$	0.61
	Loss from discontinued operations			—			—			—			(0.01	)
	Net income		$	0.43		$	0.29		$	1.13		$	0.6
	Approximately 0.5 million and 0.4 million shares of common stock issuable upon exercise of outstanding stock option awards were excluded from the calculation of diluted earnings per share for the three months ended September 30, 2014 and 2013, respectively, because their effect would have been anti-dilutive. Approximately 0.7 million shares of common stock issuable upon exercise of outstanding stock option awards were excluded from the calculation of diluted earnings per share for both the nine months ended September 30, 2014 and 2013, respectively, because their effect would have been anti-dilutive.

Acquisitions

Acquisitions	9 Months Ended
	Sep. 30, 2014
Business Combinations [Abstract]	'
Acquisitions	'
	3	Acquisitions
	McCallum
	On September 3, 2014, the Company acquired for $37.4 million the assets of McCallum Place (“McCallum”), an eating disorder treatment facility with 85 beds offering residential, partial hospitalization and intensive outpatient treatment programs located in St. Louis, Missouri, and Austin, Texas. The Company may make a cash payment under an earn-out agreement of up to $6.0 million, contingent upon achievement by McCallum of certain operating performance targets for the one-year period ending October 31, 2015.
	Partnerships in Care
	On July 1, 2014, the Company acquired Partnerships in Care for cash consideration of $661.7 million, which is net of cash acquired of $12.0 million and the gain on settlement of the foreign currency derivatives of $15.3 million. The Company used $300.0 million of proceeds from the July 1, 2014 sale of 5.125% Senior Notes due 2022 (the “5.125% Senior Notes”) (described in Note 7), $374.3 million of proceeds from the June 2014 sale of Acadia common stock (described in Note 8) and borrowings under the Company’s Amended and Restated Senior Secured Credit Facility to fund the acquisition. Partnerships in Care is the second largest independent provider of inpatient behavioral healthcare services in the United Kingdom, operating 23 inpatient behavioral healthcare facilities with over 1,200 beds.
	Pacific Grove
	On January 1, 2014, the Company acquired the assets of Pacific Grove Hospital (“Pacific Grove”), an inpatient psychiatric facility with 68 licensed beds located in Riverside, California, for cash consideration of $10.5 million.
	2013 Acquisitions
	On December 1, 2013, the Company acquired the assets of Cascade Behavioral Hospital (“Cascade”). On October 1, 2013, the Company acquired the assets of Longleaf Hospital (“Longleaf”). On August 1, 2013, the Company acquired The Refuge, a Healing Place (“The Refuge”). On May 1, 2013, the Company acquired two facilities from United Medical Corporation (the “UMC Facilities”). On January 31, 2013, the Company acquired DMC-Memphis, Inc. d/b/a Delta Medical Center (“Delta”). On January 1, 2013, the Company acquired the assets of Greenleaf Center (“Greenleaf”).
	Summary of Acquisitions
	The Company selectively seeks opportunities to expand and diversify its base of operations by acquiring additional facilities. The majority of the goodwill associated with the acquisitions completed in 2014 and 2013 is deductible for federal income tax purposes. The fair values assigned to certain assets and liabilities assumed by the Company have been estimated on a preliminary basis and are subject to change as new facts and circumstances emerge that were present at the date of acquisition. Specifically, the Company is further assessing the valuation of certain tax matters as well as certain receivables and assumed liabilities of McCallum, Partnerships in Care, Pacific Grove, and Cascade. The assumed liabilities of Partnerships in Care include a pension liability under a frozen noncontributory defined benefit pension plan (with an estimated unfunded obligation of approximately $6.3 million), which the Company expects to fund based upon actuarial assumptions and estimates (which are subject to periodic adjustment). The Company expects to finalize its analyses as the necessary information becomes available to complete the measurement process. Once finalized, the Company will adjust the application of the acquisition method of accounting to reflect its final valuations.
	The preliminary fair values of assets acquired and liabilities assumed, at the corresponding acquisition dates, during the nine months ended September 30, 2014 in connection with the McCallum, Partnerships in Care and Pacific Grove acquisitions were as follows (in thousands):
			Partnerships in Care		Other		Total
	Cash		$	11,674	$	—	$	11,674
	Accounts receivable			7,684		2,072		9,756
	Prepaid expenses and other current assets			13,570		169		13,739
	Property and equipment			610,477		11,565		622,042
	Goodwill			117,297		31,586		148,883
	Intangible assets			651		204		855
	Other assets			4,268		3,224		7,492
	Total assets acquired			765,621		48,820		814,441
	Accounts payable			3,958		93		4,051
	Accrued salaries and benefits			10,422		—		10,422
	Other accrued expenses			6,206		840		7,046
	Deferred tax liabilities – noncurrent			50,182		—		50,182
	Other liabilities			6,302		—		6,302
	Total liabilities assumed			77,070		933		78,003
	Net assets acquired		$	688,551	$	47,887	$	736,438
	The fair values of assets acquired and liabilities assumed during 2013, at the corresponding acquisition dates, were as follows (in thousands):
			UMC Facilities		Other		Total
	Cash		$	52	$	873	$	925
	Accounts receivable			4,961		5,840		10,801
	Prepaid expenses and other current assets			691		3,062		3,753
	Property and equipment			22,347		42,672		65,019
	Goodwill			67,589		37,619		105,208
	Intangible assets			1,505		1,910		3,415
	Other assets			4,712		29		4,741
	Total assets acquired			101,857		92,005		193,862
	Accounts payable			1,535		7,487		9,022
	Accrued salaries and benefits			588		3,079		3,667
	Other accrued expenses			315		2,289		2,604
	Other liabilities			—		2,360		2,360
	Total liabilities assumed			2,438		15,215		17,653
	Net assets acquired		$	99,419	$	76,790	$	176,209
	Other
	The qualitative factors comprising the goodwill acquired through September 30, 2104 in the McCallum, Partnerships in Care, Pacific Grove, Cascade, Longleaf, The Refuge, the UMC Facilities, Delta and Greenleaf acquisitions (collectively the “2013 and 2014 Acquisitions”) include efficiencies derived through synergies expected by the elimination of certain redundant corporate functions and expenses, the ability to leverage call center referrals to a broader provider base, coordination of services provided across the combined network of facilities, achievement of operating efficiencies by benchmarking performance, and applying best practices throughout the combined companies.
	Transaction-related expenses comprised the following costs for the three and nine months ended September 30, 2014 and 2013 (in thousands):
			Three Months Ended				Nine Months Ended
			September 30,				September 30,
			2014		2013		2014		2013
	Legal, accounting and other costs		$	5,935	$	841	$	10,071	$	2,644
	Severance and contract termination costs			304		143		763		1,169
			$	6,239	$	984	$	10,834	$	3,813
	Pro Forma Information
	The condensed consolidated statements of income for the three and nine months ended September 30, 2014 include revenue of $117.1 million and $184.7 million, respectively, and income from continuing operations before income taxes of $12.2 million and $16.9 million, respectively, related to acquisitions completed in 2014 and 2013. The condensed consolidated statements of income for the three and nine months ended September 30, 2013 include revenue of $24.3 million and $52.5 million, respectively, and income (loss) from continuing operations before income taxes of $0.9 million and $(1.4) million, respectively, related to acquisitions completed in 2013.
	The following table provides certain pro forma financial information for the Company as if the 2013 and 2014 Acquisitions had occurred as of January 1, 2013 (in thousands):
			Three Months Ended				Nine Months Ended
			September 30,				September 30,
			2014		2013		2014		2013
	Revenue		$	296,479	$	261,409	$	860,151	$	764,605
	Income from continuing operations, before income taxes		$	33,406	$	12,044	$	64,607	$	19,707

Other_Intangible_Assets

Other Intangible Assets	9 Months Ended
	Sep. 30, 2014
Goodwill and Intangible Assets Disclosure [Abstract]	'
Other Intangible Assets	'
	4	Other Intangible Assets
	Other identifiable intangible assets and related accumulated amortization consisted of the following as of September 30, 2014 and December 31, 2013 (in thousands):
			Gross Carrying Amount				Accumulated Amortization
			September 30,		December 31,		September 30,			December 31,
			2014		2013		2014			2013
	Intangible assets subject to amortization:
	Contract intangible assets		$	2,100	$	2,100	$	(1,225	)	$	(910	)
	Non-compete agreements			1,247		1,247		(1,121	)		(1,021	)
				3,347		3,347		(2,346	)		(1,931	)
	Intangible assets not subject to amortization:
	Licenses and accreditations			9,211		8,391		—			—
	Trade names			3,000		3,000		—			—
	Certificates of need			8,409		7,761		—			—
				20,620		19,152		—			—
	Total		$	23,967	$	22,499	$	(2,346	)	$	(1,931	)
	In connection with the Pacific Grove acquisition, the Company acquired a license and accreditation intangible asset with a fair value of $0.2 million. In connection with the Partnerships in Care acquisition, the Company acquired a license and accreditation intangible asset with a fair value of $0.7 million.
	In connection with the Greenleaf acquisition, the Company acquired a certificate of need with a fair value of $0.6 million. In connection with the Delta acquisition, the Company acquired intangible assets with a fair value of $0.8 million consisting of licenses and accreditations of $0.2 million and a certificate of need of $0.6 million. In connection with the UMC Facilities’ acquisition, the Company acquired intangible assets with a fair value of $1.5 million consisting of licenses and accreditations of $0.2 million and certificates of need of $1.3 million. In connection with the Longleaf acquisition, the Company acquired a license and accreditation intangible asset with a fair value of $0.2 million. In connection with the Cascade acquisition, the Company acquired a certificate of need with a fair value of $0.3 million. The Company incurred and capitalized $0.4 million and $0.3 million during the nine months ended September 30, 2014 and 2013, respectively, related to costs to obtain certificates of need.
	The non-compete agreements are being amortized on a straight-line basis over the term of the agreements. The contract intangible is amortized on a straight-line basis over the estimated five-year term of the related contract.
	Amortization expense related to definite-lived intangible assets was $0.1 million and $0.2 million for the three months ended September 30, 2014 and 2013, respectively, and $0.4 million and $0.6 million for the nine months ended September 30, 2014 and 2013, respectively. Estimated amortization expense for the years ending December 31, 2014, 2015, 2016, 2017 and 2018 is $0.5 million, $0.5 million, $0.4 million, $0 and $0, respectively. The Company’s licenses and accreditations, trade names and certificate of need intangible assets have indefinite lives and are, therefore, not subject to amortization.

Property_and_Equipment

Property and Equipment	9 Months Ended
	Sep. 30, 2014
Property, Plant and Equipment [Abstract]	'
Property and Equipment	'
	5	Property and Equipment
	Property and equipment consists of the following as of September 30, 2014 and December 31, 2013 (in thousands):
			September 30, 2014			December 31, 2013
	Land		$	132,114		$	58,947
	Building and improvements			829,078			259,523
	Equipment			69,538			36,742
	Construction in progress			45,885			44,186
				1,076,615			399,398
	Less accumulated depreciation			(50,237	)		(29,289	)
	Property and equipment, net		$	1,026,378		$	370,109

Discontinued_Operations

Discontinued Operations	9 Months Ended
	Sep. 30, 2014
Discontinued Operations and Disposal Groups [Abstract]	'
Discontinued Operations	'
	6	Discontinued Operations
	In June 2012, the Company disposed of its PsychSolutions facility located in Miami, Florida and recognized a pretax loss on disposal of $0.2 million, which had been included in loss from discontinued operations on the consolidated statements of income. The results of operations of this facility has been reported as discontinued operations in the accompanying consolidated financial statements.
	A summary of results from discontinued operations is as follows (in thousands):
			Three Months Ended						Nine Months Ended
			September 30,						September 30,
			2014			2013			2014			2013
	Revenue		$	—		$	—		$	—		$	—
	Loss from discontinued operations, net of income taxes		$	(51	)	$	(182	)	$	(20	)	$	(572	)

LongTerm_Debt

Long-Term Debt	9 Months Ended
	Sep. 30, 2014
Debt Disclosure [Abstract]	'
Long-Term Debt	'
	7	Long-Term Debt
	Long-term debt consisted of the following (in thousands):
			September 30, 2014			December 31, 2013
	Amended and Restated Senior Credit Facility:
	Senior Secured Term Loans		$	294,375		$	292,500
	Senior Secured Revolving Line of Credit			164,000			53,500
	12.875% Senior Notes due 2018			96,366			96,216
	6.125% Senior Notes due 2021			150,000			150,000
	5.125% Senior Notes due 2022			300,000			—
	9.0% and 9.5% Revenue Bonds			24,581			24,920
				1,029,322			617,136
	Less: current portion			(13,320	)		(15,195	)
	Long-term debt		$	1,016,002		$	601,941
	Amended and Restated Senior Credit Facility
	The Company entered into a senior secured credit facility (the “Senior Secured Credit Facility”), administered by Bank of America, N.A., on April 1, 2011. On December 31, 2012, the Company entered into an Amended and Restated Credit Agreement (the “Amended and Restated Credit Agreement”) which amended and restated the Senior Secured Credit Facility (“Amended and Restated Senior Credit Facility”).
	On February 13, 2014, the Company entered into a Fourth Amendment (the “Fourth Amendment”) to the Amended and Restated Credit Agreement, to increase the size of the Amended and Restated Senior Credit Facility and extend the maturity date thereof, which resulted in the Company having a revolving line of credit of up to $300.0 million and term loans of $300.0 million. The Fourth Amendment also reduced the interest rates applicable to the Amended and Restated Senior Credit Facility and provided increased flexibility to the Company in terms of the financial and other restrictive covenants. The Fourth Amendment also provides for a $150.0 million incremental credit facility, with the potential for unlimited additional incremental amounts, provided the Company meets certain financial ratios, in each case subject to customary conditions precedent to borrowing.
	On June 16, 2014, the Company entered into a Fifth Amendment (the “Fifth Amendment”) to the Amended and Restated Credit Agreement. The Fifth Amendment specifically permitted the Company’s acquisition of Partnerships in Care, gave the Company the ability to incur a tranche of term loan B debt in the future through its incremental credit facility, and modified certain of the restrictive covenants on miscellaneous investments and incurrence of miscellaneous liens. The restrictive covenants on investments in joint ventures and foreign subsidiaries were also amended such that the Company may now invest, in any given fiscal year, up to five percent (5%) of its total assets in both joint ventures and foreign subsidiaries, respectively; provided that the aggregate amount of investments in both joint ventures and foreign subsidiaries, respectively, may not exceed ten percent (10%) of its total assets over the life of the Amended and Restated Senior Credit Facility; provided further that the aggregate amount of investments made in both joint ventures and foreign subsidiaries collectively pursuant to the foregoing may not exceed fifteen percent (15%) of its total assets. Finally, the Fifth Amendment provided increased flexibility to the Company in terms of its financial covenants.
	The Company had $135.6 million of availability under the revolving line of credit as of September 30, 2014. Borrowings under the revolving line of credit are subject to customary conditions precedent to borrowing. The term loans require quarterly principal payments of $1.9 million for September 30, 2014 to December 31, 2014, $3.8 million for March 31, 2015 to December 31, 2015, $5.6 million for March 31, 2016 to December 31, 2016, $7.5 million for March 31, 2017 to December 31, 2017, and $9.4 million for March 31, 2018 to December 31, 2018, with the remaining principal balance due on the maturity date of February 13, 2019.
	Borrowings under the Amended and Restated Senior Credit Facility are guaranteed by each of the Company’s wholly-owned domestic subsidiaries (other than Park Royal and certain other excluded subsidiaries) and are secured by a lien on substantially all of the assets of the Company and such subsidiaries. Borrowings under the Amended and Restated Senior Credit Facility bear interest at a rate tied to Acadia’s Consolidated Leverage Ratio (defined as consolidated funded debt net of up to $20,000,000 of unrestricted and unencumbered cash to consolidated EBITDA, in each case as defined in the Amended and Restated Credit Agreement). The Applicable Rate (as defined in the Amended and Restated Credit Agreement) for borrowings under the Amended and Restated Senior Credit Facility was 2.75% for Eurodollar Rate Loans (as defined in the Amended and Restated Credit Agreement) and 1.75% for Base Rate Loans (as defined in the Amended and Restated Credit Agreement) at September 30, 2014. Eurodollar Rate Loans bear interest at the Applicable Rate plus the Eurodollar Rate (as defined in the Amended and Restated Credit Agreement) (based upon the LIBOR Rate (as defined in the Amended and Restated Credit Agreement) prior to commencement of the interest rate period). Base Rate Loans bear interest at the Applicable Rate plus the highest of (i) the federal funds rate plus 0.50%, (ii) the prime rate and (iii) the Eurodollar Rate plus 1.0%. As of September 30, 2014, borrowings under the Senior Secured Credit Facility bore interest at a rate of LIBOR plus 2.75%. In addition, we are required to pay a commitment fee on undrawn amounts under the revolving line of credit. We paid a commitment fee of 0.50% for undrawn amounts for the period from January 1, 2013 through February 12, 2014 and 0.40% for undrawn amounts for the period from February 13, 2014 through September 30, 2014. The Amended and Restated Senior Credit Facility matures on February 13, 2019.
	The Amended and Restated Credit Agreement requires the Company and its subsidiaries to comply with customary affirmative, negative and financial covenants, including a fixed charge coverage ratio, consolidated leverage ratio and senior secured leverage ratio. The Company may be required to pay all of its indebtedness immediately if it defaults on any of the numerous financial or other restrictive covenants contained in any of its material debt agreements. As of September 30, 2014, the Company was in compliance with such covenants.
	12.875% Senior Notes due 2018
	On November 1, 2011, the Company issued $150.0 million of 12.875% Senior Notes due 2018 (the “12.875% Senior Notes”) at 98.323% of the aggregate principal amount of $150.0 million, a discount of $2.5 million. The notes bear interest at a rate of 12.875% per annum. The Company pays interest on the notes semi-annually, in arrears, on November 1 and May 1 of each year.
	The indenture governing the 12.875% Senior Notes contains covenants that, among other things, limit the Company’s ability and the ability of its restricted subsidiaries to: (i) pay dividends, redeem stock or make other distributions or investments; (ii) incur additional debt or issue certain preferred stock; (iii) transfer or sell assets; (iv) engage in certain transactions with affiliates; (v) create restrictions on dividends or other payments by the restricted subsidiaries; (vi) merge, consolidate or sell substantially all of the Company’s assets; and (vii) create liens on assets.
	The 12.875% Senior Notes issued by the Company are guaranteed by each of the Company’s subsidiaries that guarantee the Company’s obligations under the Amended and Restated Senior Credit Facility. The guarantees are full and unconditional and joint and several.
	On March 12, 2013, the Company redeemed $52.5 million in principal amount of the 12.875% Senior Notes using a portion of the net proceeds of its December 2012 equity offering pursuant to the provision in the indenture permitting an optional redemption with equity proceeds of up to 35% of the principal amount of 12.875% Senior Notes. The 12.875% Senior Notes were redeemed at a redemption price of 112.875% of the principal amount thereof plus accrued and unpaid interest to, but not including, the redemption date in accordance with the provisions of the indenture governing the 12.875% Senior Notes. As part of the redemption of 35% of the 12.875% Senior Notes, the Company recorded a debt extinguishment charge of $9.4 million, including the premium and write-off of deferred financing costs, which was recorded in debt extinguishment costs in the consolidated statements of income.
	6.125% Senior Notes due 2021
	On March 12, 2013, the Company issued $150.0 million of 6.125% Senior Notes due 2021 (the “6.125% Senior Notes”). The 6.125% Senior Notes mature on March 15, 2021 and bear interest at a rate of 6.125% per annum, payable semi-annually in arrears on March 15 and September 15 of each year.
	The indenture governing the 6.125% Senior Notes contains covenants that, among other things, limit the Company’s ability and the ability of its restricted subsidiaries to: (i) pay dividends, redeem stock or make other distributions or investments; (ii) incur additional debt or issue certain preferred stock; (iii) transfer or sell assets; (iv) engage in certain transactions with affiliates; (v) create restrictions on dividends or other payments by the restricted subsidiaries; (vi) merge, consolidate or sell substantially all of the Company’s assets; and (vii) create liens on assets.
	The 6.125% Senior Notes issued by the Company are guaranteed by each of the Company’s subsidiaries that guarantee the Company’s obligations under the Amended and Restated Credit Facility. The guarantees are full and unconditional and joint and several.
	The Company may redeem the 6.125% Senior Notes at its option, in whole or part, at any time prior to March 15, 2016, at a price equal to 100% of the principal amount of the 6.125% Senior Notes redeemed, plus accrued and unpaid interest to the redemption date and plus an applicable premium. The Company may redeem the 6.125% Senior Notes, in whole or in part, on or after March 15, 2016, at the redemption prices set forth in the indenture governing the 6.125% Senior Notes plus accrued and unpaid interest to the redemption date. At any time on or before March 15, 2016, the Company may elect to redeem up to 35% of the aggregate principal amount of the 6.125% Senior Notes at a redemption price equal to 106.125% of the principal amount thereof, plus accrued and unpaid interest to the redemption date, with the net proceeds of one or more equity offerings.
	5.125% Senior Notes due 2022
	On July 1, 2014, the Company issued $300.0 million of 5.125% Senior Notes. The 5.125% Senior Notes mature on July 1, 2022 and bear interest at a rate of 5.125% per annum, payable semi-annually in arrears on January 1 and July 1 of each year, beginning on January 1, 2015.
	The indenture governing the 5.125% Senior Notes contains covenants that limit, among other things, the Company’s ability and the ability of its restricted subsidiaries to: (i) pay dividends, redeem stock or make other distributions or investments; (ii) incur additional debt or issue certain preferred stock; (iii) transfer or sell assets; (iv) engage in certain transactions with affiliates; (v) create restrictions on dividends or other payments by the restricted subsidiaries; (vi) merge, consolidate or sell substantially all of the Company’s assets and (vii) create liens on assets.
	The 5.125% Senior Notes issued by the Company are guaranteed by each of the Company’s subsidiaries that guarantee the Company’s obligations under the Amended and Restated Credit Facility. The guarantees are full and unconditional and joint and several.
	The Company may redeem the 5.125% Senior Notes at its option, in whole or part, at any time prior to July 1, 2017, at a price equal to 100% of the principal amount of the 5.125% Senior Notes redeemed, plus accrued and unpaid interest to the redemption date and plus an applicable premium. The Company may redeem the 5.125% Senior Notes, in whole or in part, on or after July 1, 2017, at the redemption prices set forth in the indenture governing the 5.125% Senior Notes plus accrued and unpaid interest to the redemption date. At any time on or before July 1, 2017, the Company may elect to redeem up to 35% of the aggregate principal amount of the 5.125% Senior Notes at a redemption price equal to 105.125% of the principal amount thereof, plus accrued and unpaid interest to the redemption date, with the net proceeds of one or more equity offerings.
	9.0% and 9.5% Revenue Bonds
	On November 11, 2012, in connection with the acquisition of Park Royal, the Company assumed debt of $23.0 million. The fair market value of the debt assumed was $25.6 million and resulted in a debt premium balance being recorded as of the acquisition date. The debt consisted of $7.5 million and $15.5 million of Lee County (Florida) Industrial Development Authority Healthcare Facilities Revenue Bonds, Series 2010 with stated interest rates of 9.0% and 9.5% (“9.0% and 9.5% Revenue Bonds”), respectively. The 9.0% bonds in the amount of $7.5 million have a maturity date of December 1, 2030 and require yearly principal payments beginning in 2013. The 9.5% bonds in the amount of $15.5 million have a maturity date of December 1, 2040 and require yearly principal payments beginning in 2031. The principal payments establish a bond sinking fund to be held with the trustee and shall be sufficient to redeem the principal amounts of the 9.0% and 9.5% Revenue Bonds on their respective maturity dates. As of September 30, 2014 and December 31, 2013, $2.3 million was recorded within other assets on the balance sheet related to the debt service reserve fund requirements. The yearly principal payments, which establish a bond sinking fund, will increase the debt service reserve fund requirements. The bond premium amount of $2.6 million is amortized as a reduction of interest expense over the life of the revenue bonds using the effective interest method.

Equity

Equity	9 Months Ended
	Sep. 30, 2014
Equity [Abstract]	'
Equity	'
	8	Equity
	Preferred Stock
	The Company’s amended and restated certificate of incorporation provides that up to 10,000,000 shares of preferred stock may be issued. The Board of Directors has the authority to issue preferred stock in one or more series and to fix for each series the voting powers (full, limited or none), and the designations, preferences and relative participating, optional or other special rights and qualifications, limitations or restrictions on the stock and the number of shares constituting any series and the designations of this series, without any further vote or action by the stockholders.
	Common Stock
	The Company’s amended and restated certificate of incorporation provides that up to 90,000,000 shares of common stock may be issued. Holders of the Company’s common stock are entitled to one vote for each share held of record on all matters on which stockholders may vote. There are no preemptive, conversion, redemption or sinking fund provisions applicable to shares of the Company’s common stock. In the event of liquidation, dissolution or winding up, holders of the Company’s common stock are entitled to share ratably in the assets available for distribution, subject to any prior rights of any holders of preferred stock then outstanding. Delaware law prohibits the Company from paying any dividends unless it has capital surplus or net profits available for this purpose. In addition, the Amended and Restated Senior Credit Facility imposes restrictions on the Company’s ability to pay dividends.
	Equity Offering
	On June 17, 2014, the Company completed the offering of 8,881,794 shares of common stock (including shares sold pursuant to the exercise of the over-allotment option that the Company granted to the underwriters as part of the offering) at a price of $44.00 per share. The net proceeds to the Company from the sale of the shares, after deducting the underwriting discount of $15.6 million and additional offering-related expenses of $0.8 million, were $374.3 million. The Company used the net offering proceeds to partially fund the purchase price for the acquisition of Partnerships in Care on July 1, 2014.

EquityBased_Compensation

Equity-Based Compensation	9 Months Ended
	Sep. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Equity-Based Compensation	'
	9	Equity-Based Compensation
	Equity Incentive Plans
	The Company issues stock-based awards, including stock options, restricted stock and restricted stock units, to certain officers, employees and non-employee directors under the Acadia Healthcare Company, Inc. Incentive Compensation Plan (the “Equity Incentive Plan”). As of September 30, 2014, a maximum of 4,700,000 shares of the Company’s common stock were authorized for issuance as stock options, restricted stock and restricted stock units or other share-based compensation under the Equity Incentive Plan, of which 2,664,749 were available for future grant. Stock options may be granted for terms of up to ten years. The Company recognizes expense on all share-based awards on a straight-line basis over the requisite service period of the entire award. Grants to employees generally vest in annual increments of 25% each year, commencing one year after the date of grant. The exercise prices of stock options are equal to the most recent closing price of the Company’s common stock on the date of grant.
	The Company recognized $2.8 million and $1.3 million in equity-based compensation expense for the three months ended September 30, 2014 and 2013, respectively, and $7.0 million and $3.7 million for the nine months ended September 30, 2014 and 2013, respectively. As of September 30, 2014, there was $33.6 million of unrecognized compensation expense related to unvested options, restricted stock and restricted stock units, which is expected to be recognized over the remaining weighted average vesting period of 1.6 years.
	As of September 30, 2014, there were no warrants outstanding and exercisable. The Company recognized a deferred income tax benefit of $1.1 million and $0.6 million for the three months ended September 30, 2014 and 2013, respectively, related to equity-based compensation expense. The Company recognized a deferred income tax benefit of $2.8 million and $1.5 million for the nine months ended September 30, 2014 and 2013, respectively, related to equity-based compensation expense. The actual tax benefit realized from stock options exercised during the three months ended September 30, 2014 and 2013 was $0.3 million and $0.1 million, respectively. The actual tax benefit realized from stock options exercised during the nine months ended September 30, 2014 and 2013 was $3.8 million and $1.3 million, respectively.
	Stock option activity during 2013 and 2014 was as follows (aggregate intrinsic value in thousands):
			Number of			Weighted			Weighted		Aggregate
			Options			Average			Average		Intrinsic
						Exercise Price			Remaining		Value
									Contractual
									Term (in years)
	Options outstanding at January 1, 2013			555,097		$	13.13			7.53	$	5,632
	Options granted			411,800			30.55			9.3		2,059
	Options exercised			(126,662	)		9.36			N/A		2,803
	Options cancelled			(41,426	)		23.5			N/A		N/A
	Options outstanding at December 31, 2013			798,809			21.93			8.2		10,700
	Options granted			218,263			49.68			9.26		97
	Options exercised			(182,888	)		15.31			N/A		4,994
	Options cancelled			(55,889	)		33.65			N/A		N/A
	Options outstanding at September 30, 2014			778,295			31.92			8.01		14,349
	Options exercisable at December 31, 2013			133,647		$	11.15			4.81	$	3,472
	Options exercisable at September 30, 2014			118,008		$	29.04			5.42	$	3,840
	Restricted stock activity during 2013 and 2014 was as follows:
			Number of			Weighted
			Shares			Average
						Grant-Date
						Fair Value
	Unvested at January 1, 2013			318,063		$	15.73
	Granted			290,845			31.31
	Cancelled			(53,056	)		21.27
	Vested			(94,155	)		15.52
	Unvested at December 31, 2013			461,697		$	24.96
	Granted			456,384			48.89
	Cancelled			(68,769	)		36
	Vested			(113,376	)		23.84
	Unvested at September 30, 2014			735,936		$	38.95
	Restricted stock unit activity during 2013 and 2014 was as follows:
			Number of			Weighted
			Units			Average
						Grant-Date
						Fair Value
	Unvested at January 1, 2013			68,628		$	16.11
	Granted			72,876			29.39
	Cancelled			—			—
	Vested			(45,753	)		16.11
	Unvested at December 31, 2013			95,751		$	23.05
	Granted			108,449			50.75
	Cancelled			—			—
	Vested			(79,087	)		21.81
	Unvested at September 30, 2014			125,113		$	38.73
	The grant-date fair value of the Company’s stock options is estimated using the Black-Scholes option pricing model. The following table summarizes the grant-date fair value of options and the assumptions used to develop the fair value estimates for options granted during the nine months ended September 30, 2014 and year ended December 31, 2013:
			September 30, 2014			December 31, 2013
	Weighted average grant-date fair value of options		$	17.8		$	11.62
	Risk-free interest rate			1.7	%		1	%
	Expected volatility			36	%		40	%
	Expected life (in years)			5.5			5.5
	The Company’s estimate of expected volatility for stock options is based upon the volatility of guideline companies given the lack of sufficient historical trading experience of the Company’s common stock. The risk-free interest rate is the approximate yield on United States Treasury Strips having a life equal to the expected option life on the date of grant. The expected life is an estimate of the number of years an option will be held before it is exercised.

Income_Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2014
Income Tax Disclosure [Abstract]	'
Income Taxes	'
	10	Income Taxes
	The provision for income taxes for continuing operations for the three months ended September 30, 2014 and 2013 reflects effective tax rates of 23.2% and 34.7%, respectively. The provision for income taxes for continuing operations for the nine months ended September 30, 2014 and 2013 reflects effective tax rates of 33.3% and 37.4%, respectively. The decrease in the tax rate for the three and nine months ended September 30, 2014 was primarily attributable to the Company’s acquisition of Partnerships in Care, which is located in a lower taxing jurisdiction and for which earnings are permanently reinvested.

Derivatives

Derivatives	9 Months Ended
	Sep. 30, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Derivatives	'
	11	Derivatives
	The Company entered into two foreign currency forward contracts in June 2014 in connection with the Partnerships in Care acquisition. The foreign currency forward contracts limited the economic risk of changes in the foreign exchange rate between US Dollars (“USD”) and British Pounds (“GBP”) associated with the payment of the purchase price in GBP on July 1, 2014. These foreign currency forward contracts did not meet the hedge accounting criteria under Accounting Standards Codification 815, Derivatives and Hedging. As such, gains associated with changes in fair value of $1.5 million and $15.3 million for the three and nine months ended September 30, 2014, respectively, have been recorded in the consolidated statements of income. The final fair value of the foreign currency forward contracts settled on July 1, 2014.

Fair_Value_Measurements

Fair Value Measurements	9 Months Ended
	Sep. 30, 2014
Fair Value Disclosures [Abstract]	'
Fair Value Measurements	'
	12	Fair Value Measurements
	The carrying amounts reported for cash and cash equivalents, accounts receivable, other current assets, accounts payable and other current liabilities approximate fair value because of the short-term maturity of these instruments.
	The carrying amounts and fair values of the Company’s Amended and Restated Senior Credit Facility, 12.875% Senior Notes, 6.125% Senior Notes, 5.125% Senior Notes, 9.0% and 9.5% Revenue Bonds, contingent consideration liability and foreign currency derivatives as of September 30, 2014 and December 31, 2013 were as follows (in thousands):
			Carrying Amount				Fair Value
			September 30,		December 31,		September 30,		December 31,
			2014		2013		2014		2013
	Amended and Restated Senior Credit Facility		$	458,375	$	346,000	$	458,375	$	346,000
	12.875% Senior Notes due 2018		$	96,366	$	96,216	$	111,881	$	118,706
	6.125% Senior Notes due 2021		$	150,000	$	150,000	$	152,625	$	155,625
	5.125% Senior Notes due 2022		$	300,000		—	$	290,250		—
	9.0% and 9.5% Revenue Bonds		$	24,581	$	24,920	$	24,581	$	24,920
	Contingent consideration liabilities		$	3,467	$	6,500	$	3,467	$	6,500
	The Company’s Amended and Restated Senior Credit Facility, 12.875% Senior Notes, 6.125% Senior Notes, 5.125% Senior Notes and 9.0% and 9.5% Revenue Bonds were categorized as Level 2 in the GAAP fair value hierarchy. Fair values were based on trading activity among the Company’s lenders and the average bid and ask price as determined using published rates.
	The fair value of the contingent consideration liabilities at September 30, 2014 were categorized as Level 3 in the GAAP fair value hierarchy. The contingent consideration liabilities were valued using a probability-weighted discounted cash flow method. This analysis reflected the contractual terms of the purchase agreements and utilized assumptions with regard to future earnings, probabilities of achieving such future earnings and a discount rate. Significant increases with respect to assumptions as to future earnings and probabilities of achieving such future earnings would result in higher fair value measurement while an increase in the discount rate would result in a lower fair value measurement. During the nine months ended September 30, 2014, the Company changed its projections of the timing of future payments for the Park Royal contingent consideration liability. This change resulted in a $0.5 million increase in the fair value of the contingent consideration liability, which was recorded in transaction-related expenses in the consolidated statements of income. During the nine months ended September 30, 2014, the Company paid $5.0 million of the estimated $7.0 million Park Royal contingent consideration liability due to the facility achieving certain earnings targets. The Company may make a cash earn-out payment of up to $6.0 million, contingent upon achievement by McCallum of certain operating performance targets for the one-year period ending October 31, 2015.

Commitments_and_Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Commitments and Contingencies	'
	13	Commitments and Contingencies
	The Company is, from time to time, subject to various claims and legal actions that arise in the ordinary course of the Company’s business, including claims for damages for personal injuries, medical malpractice, breach of contract, tort and employment related claims. In these actions, plaintiffs request a variety of damages, including, in some instances, punitive and other types of damages that may not be covered by insurance. In the opinion of management, the Company is not currently a party to any proceeding that would individually or in the aggregate have a material adverse effect on the Company’s business, financial condition or results of operations.

Recently_Issued_Accounting_Sta

Recently Issued Accounting Standards	9 Months Ended
	Sep. 30, 2014
Accounting Changes and Error Corrections [Abstract]	'
Recently Issued Accounting Standards	'
	14	Recently Issued Accounting Standards
	In April 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2014-08, “Presentation of Financial Statements (Topic 205) and Property, Plant, and Equipment (Topic 360): Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity” (“ASU 2014-08”). ASU 2014-08 raises the threshold for a disposal to qualify as a discontinued operation and requires new disclosures of both discontinued operations and certain other disposals that do not meet the definition of a discontinued operation. ASU 2014-08 is effective for fiscal years, and interim periods within those years, beginning after December 15, 2014. Early adoption is permitted. Management is evaluating the impact of ASU 2014-08 on the Company’s consolidated financial statements and does not expect ASU 2014-08 to have a significant impact on the Company’s consolidated financial statements.
	In May 2014, the FASB and the International Accounting Standards Board issued ASU 2014-09, “Revenue from Contracts with Customers (Topic 606)” (“ASU 2014-09”). ASU 2014-09’s core principal is that a company will recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. ASU 2014-09 is effective for fiscal years, and interim periods within those years, beginning after December 15, 2016. Early adoption is not permitted. Management is evaluating the impact of ASU 2014-09 on the Company’s consolidated financial statements.

Subsequent_Events

Subsequent Events	9 Months Ended
	Sep. 30, 2014
Subsequent Events [Abstract]	'
Subsequent Events	'
	15	Subsequent Events
	On October 29, 2014, the Company entered into an Agreement and Plan of Merger (the “Merger Agreement”) among the Company, Copper Acquisition Co., Inc., a newly formed Delaware corporation wholly owned by the Company (the “Merger Subsidiary”), and CRC Health Group, Inc., a Delaware corporation (“CRC”), pursuant to which, among other things, the Merger Subsidiary will be merged with and into CRC with CRC surviving as a wholly owned subsidiary of the Company (the “Merger”). CRC is a leading provider of treatment services related to substance abuse, troubled youth, and other addiction diseases and behavioral disorders. At September 30, 2014, CRC operated 120 facilities in 30 states.
	Pursuant to the Merger Agreement, among other things, at the effective time of the Merger (i) the Company will issue up to 6.3 million shares of the Company’s common stock, $0.01 par value per share, in the aggregate to certain holders of CRC common stock in exchange therefor; (ii) all other CRC securities and the equity awards of CRC will be cancelled and the holder of such other securities and equity awards will be entitled to receive an amount in cash in exchange therefor based on the market value of the Company’s common stock, and (iii) all outstanding indebtedness of CRC will be repaid. The estimated aggregate consideration to be paid by the Company under the Merger Agreement is approximately $1.175 billion (of which a portion will be used for the repayment of net indebtedness of CRC and its subsidiaries at the closing of the Merger).

Segment_Information

Segment Information	9 Months Ended
	Sep. 30, 2014
Segment Reporting [Abstract]	'
Segment Information	'
	16	Segment Information
	The Company operates in one line of business, which is operating inpatient psychiatric facilities, residential treatment centers, group homes, substance abuse facilities and facilities providing outpatient behavioral healthcare services. As management reviews the operating results of its facilities in the United States (the U.S. Facilities) and its facilities in the United Kingdom (the U.K. Facilities) separately to assess performance and make decisions, the Company’s operating segments include its U.S. Facilities and U.K. Facilities. At September 30, 2014, the U.S. Facilities included 53 behavioral healthcare facilities with over 4,500 licensed beds in 24 states and Puerto Rico, and the U.K. Facilities included 23 behavioral healthcare facilities with over 1,200 licensed beds in the United Kingdom.
	The following tables set forth the financial information by operating segment, including a reconciliation of Segment EBITDA to income from continuing operations before income taxes (in thousands):
			Three Months Ended September 30, 2014
			U.S. Facilities			U.K. Facilities			Corporate			Consolidated
									and Other
	Revenue		$	217,427		$	76,026		$	1,026		$	294,479
	Segment EBITDA (1)			53,814			20,253			(9,001	)		65,066
	Plus (less):
	Equity-based compensation expense			—			—			(2,805	)		(2,805	)
	Gain on foreign currency derivatives			—			—			1,527			1,527
	Transaction-related expenses			—			(811	)		(5,428	)		(6,239	)
	Interest expense, net			(517	)		(9,451	)		(4,100	)		(14,068	)
	Depreciation and amortization			(5,475	)		(4,094	)		(756	)		(10,325	)
	Income (loss) from continuing operations before income taxes		$	47,822		$	5,897		$	(20,563	)	$	33,156
			Three Months Ended September 30, 2013
			U.S. Facilities			U.K. Facilities			Corporate			Consolidated
									and Other
	Revenue		$	184,071		$	—		$	631		$	184,702
	Segment EBITDA (1)			45,115			—			(6,634	)		38,481
	Plus (less):
	Equity-based compensation expense			—			—			(1,331	)		(1,331	)
	Transaction-related expenses			—			—			(984	)		(984	)
	Interest expense, net			(926	)		—			(8,539	)		(9,465	)
	Depreciation and amortization			(3,727	)		—			(687	)		(4,414	)
	Income (loss) from continuing operations before income taxes		$	40,462		$	—		$	(18,175	)	$	22,287
			Nine Months Ended September 30, 2014
			U.S. Facilities			U.K. Facilities			Corporate			Consolidated
									and Other
	Revenue		$	630,825		$	76,026		$	2,849		$	709,700
	Segment EBITDA (1)			154,377			20,253			(25,568	)		149,062
	Plus (less):
	Equity-based compensation expense			—			—			(6,975	)		(6,975	)
	Gain on foreign currency derivatives			—			—			15,262			15,262
	Transaction-related expenses			—			(811	)		(10,023	)		(10,834	)
	Interest expense, net			(1,665	)		(9,451	)		(22,389	)		(33,505	)
	Depreciation and amortization			(15,381	)		(4,094	)		(2,221	)		(21,696	)
	Income (loss) from continuing operations before income taxes		$	137,331		$	5,897		$	(51,914	)	$	91,314
			Nine Months Ended September 30, 2013
			U.S. Facilities			U.K. Facilities			Corporate			Consolidated
									and Other
	Revenue		$	521,368		$	—		$	2,041		$	523,409
	Segment EBITDA (1)			126,017			—			(19,880	)		106,137
	Plus (less):
	Equity-based compensation expense			—			—			(3,744	)		(3,744	)
	Debt extinguishment costs			—			—			(9,350	)		(9,350	)
	Transaction-related expenses			—			—			(3,813	)		(3,813	)
	Interest expense, net			(2,114	)		—			(25,558	)		(27,672	)
	Depreciation and amortization			(10,375	)		—			(1,873	)		(12,248	)
	Income (loss) from continuing operations before income taxes		$	113,528		$	—		$	(64,218	)	$	49,310
			U.S. Facilities			U.K. Facilities			Corporate			Consolidated
									and Other
	Goodwill:
	Balance at January 1, 2014		$	661,549		$	—		$	—		$	661,549
	Increase from 2014 acquisitions			31,586			117,297			—			148,883
	Foreign currency translation loss			—			(6,199	)		—			(6,199	)
	Other			414			—			—			414
	Balance at September 30, 2014		$	693,549		$	111,098		$	—		$	804,647
			September 30,			December 31,
			2014			2013
	Assets:
	U.S. Facilities		$	1,291,961		$	1,155,813
	U.K. Facilities			743,288			—
Corporate and Other			105,219			68,846
		$	2,140,468		$	1,224,659
-1	Segment EBITDA is defined as income from continuing operations before provision for income taxes, equity-based compensation expense, debt extinguishment costs, gain on foreign currency derivatives, transaction-related expenses, interest expense and depreciation and amortization. The Company uses Segment EBITDA as an analytical indicator to measure the performance of the Company’s segments and to develop strategic objectives and operating plans for those segments. Segment EBITDA is commonly used as an analytical indicator within the health care industry, and also serves as a measure of leverage capacity and debt service ability. Segment EBITDA should not be considered as a measure of financial performance under generally accepted accounting principles, and the items excluded from Segment EBITDA are significant components in understanding and assessing financial performance. Because Segment EBITDA is not a measurement determined in accordance with generally accepted accounting principles and is thus susceptible to varying calculations, Segment EBITDA, as presented, may not be comparable to other similarly titled measures of other companies.

Partnerships_in_Care_Pension_P

Partnerships in Care Pension Plan	9 Months Ended
	Sep. 30, 2014
Compensation and Retirement Disclosure [Abstract]	'
Partnerships in Care Pension Plan	'
	17	Partnerships in Care Pension Plan
	As part of the acquisition of Partnerships in Care on July 1, 2014, the Company assumed a frozen noncontributory defined benefit retirement plan (“Partnerships in Care Pension Plan”) covering substantially all of the employees of Partnerships in Care and its subsidiaries prior to May 1, 2005. The benefits under the Partnerships in Care Pension Plan are primarily based on years of service and final average earnings.
	The Partnerships in Care Pension Plan pension liability was $6.3 million as of July 1, 2014. The fair value of the liabilities and assets as of September 30, 2014 were approximately $62.8 million and $57.0 million, respectively.
	The following table summarizes changes in the Partnerships in Care Pension Plan pension liability (in thousands):
	Pension liability at July 1, 2014		$	6,302
	Employer contributions			(1,097	)
	Net pension benefit expense			897
	Foreign currency translation loss			(327	)
	Pension liability at September 30, 2014		$	5,775
	A pension liability of $5.8 million is recorded within other liabilities on the consolidated balance sheet as of September 30, 2014.

Financial_Information_for_the_

Financial Information for the Company and Its Subsidiaries	9 Months Ended
	Sep. 30, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Financial Information for the Company and Its Subsidiaries	'
	18	Financial Information for the Company and Its Subsidiaries
	The Company conducts substantially all of its business through its subsidiaries. The 12.875% Senior Notes, 6.125% Senior Notes and 5.125% Senior Notes are jointly and severally guaranteed on an unsecured senior basis by all of the Company’s subsidiaries that guarantee the Company’s obligations under the Amended and Restated Credit Facility. Presented below is condensed consolidating financial information for the Company and its subsidiaries as of September 30, 2014 and December 31, 2013, and for the three and nine months ended September 30, 2014 and 2013. The information segregates the parent company (Acadia Healthcare Company, Inc.), the combined wholly-owned subsidiary guarantors, the combined non-guarantor subsidiaries and eliminations.
	Acadia Healthcare Company, Inc.
	Condensed Consolidating Balance Sheets
	September 30, 2014
	(In thousands)
			Parent			Combined			Combined			Consolidating			Total
						Subsidiary			Non-			Adjustments			Consolidated
						Guarantors			Guarantors						Amounts
	Current assets:
	Cash and cash equivalents		$	—		$	10,421		$	31,758		$	—		$	42,179
	Accounts receivable, net			—			111,706			18,547			—			130,253
	Deferred tax assets			—			18,894			888			—			19,782
	Other current assets			—			31,772			5,854			—			37,626
	Total current assets			—			172,793			57,047			—			229,840
	Property and equipment, net			—			412,958			613,420			—			1,026,378
	Goodwill			—			596,214			208,433			—			804,647
	Intangible assets, net			—			19,015			2,606			—			21,621
	Deferred tax assets – noncurrent			3,347			—			16,916			(4,330	)		15,933
	Investment in subsidiaries			1,693,275			—			—			(1,693,275	)		—
	Other assets			204,562			17,926			2,321			(182,760	)		42,049
	Total assets		$	1,901,184		$	1,218,906		$	900,743		$	(1,880,365	)	$	2,140,468
	Current liabilities:
	Current portion of long-term debt		$	13,125		$	—		$	195		$	—		$	13,320
	Accounts payable			—			34,774			8,486			—			43,260
	Accrued salaries and benefits			—			42,515			13,698			—			56,213
	Other accrued liabilities			9,867			12,620			7,260			—			29,747
	Total current liabilities			22,992			89,909			29,639			—			142,540
	Long-term debt			991,616			—			207,146			(182,760	)		1,016,002
	Deferred tax liabilities – noncurrent			—			19,512			49,589			(4,330	)		64,771
	Other liabilities			—			24,361			6,218			—			30,579
	Total liabilities			1,014,608			133,782			292,592			(187,090	)		1,253,892
	Total equity			886,576			1,085,124			608,151			(1,693,275	)		886,576
	Total liabilities and equity		$	1,901,184		$	1,218,906		$	900,743		$	(1,880,365	)	$	2,140,468
	Acadia Healthcare Company, Inc.
	Condensed Consolidating Balance Sheets
	December 31, 2013
	(In thousands)
			Parent			Combined			Combined			Consolidating			Total
						Subsidiary			Non-			Adjustments			Consolidated
						Guarantors			Guarantors						Amounts
	Current assets:
	Cash and cash equivalents		$	—		$	—		$	6,494		$	(1,925	)	$	4,569
	Accounts receivable, net			—			86,597			9,288			—			95,885
	Deferred tax assets			—			15,284			419			—			15,703
	Other current assets			—			27,886			1,083			—			28,969
	Total current assets			—			129,767			17,284			(1,925	)		145,126
	Property and equipment, net			—			340,175			29,934			—			370,109
	Goodwill			—			564,539			97,010			—			661,549
	Intangible assets, net			—			18,578			1,990			—			20,568
	Investment in subsidiaries			1,034,160			—			—			(1,034,160	)		—
	Other assets			46,236			11,675			8,082			(38,686	)		27,307
	Total assets		$	1,080,396		$	1,064,734		$	154,300		$	(1,074,771	)	$	1,224,659
	Current liabilities:
	Current portion of long-term debt		$	15,000		$	—		$	195		$	—		$	15,195
	Accounts payable			—			36,289			1,662			(1,925	)		36,026
	Accrued salaries and benefits			—			36,027			1,694			—			37,721
	Other accrued liabilities			4,876			19,982			890			—			25,748
	Total current liabilities			19,876			92,298			4,441			(1,925	)		114,690
	Long-term debt			577,216			—			57,650			(32,925	)		601,941
	Deferred tax liabilities – noncurrent			2,594			11,138			—			(5,761	)		7,971
	Other liabilities			—			19,347			—			—			19,347
	Total liabilities			599,686			122,783			62,091			(40,611	)		743,949
Total equity			480,710			941,951			92,209			(1,034,160	)		480,710
Total liabilities and equity		$	1,080,396		$	1,064,734		$	154,300		$	(1,074,771	)	$	1,224,659
Acadia Healthcare Company, Inc.
Condensed Consolidating Statement of Comprehensive Loss
Three Months Ended September 30, 2014
(In thousands)
		Parent			Combined			Combined			Consolidating			Total
					Subsidiary			Non-			Adjustments			Consolidated
					Guarantors			Guarantors						Amounts
Revenue before provision for doubtful accounts		$	—		$	212,376		$	90,625		$	—		$	303,001
Provision for doubtful accounts			—			(7,444	)		(1,078	)		—			(8,522	)
Revenue			—			204,932			89,547			—			294,479
Salaries, wages and benefits			2,805			117,261			48,566			—			168,632
Professional fees			—			9,816			5,062			—			14,878
Supplies			—			10,784			3,278			—			14,062
Rents and leases			—			2,419			795			—			3,214
Other operating expenses			—			18,979			12,453			—			31,432
Depreciation and amortization			—			5,874			4,451			—			10,325
Interest expense, net			4,096			6,439			3,533			—			14,068
Gain on foreign currency derivatives			(1,527	)		—			—			—			(1,527	)
Transaction-related expenses			—			5,428			811			—			6,239
Total expenses			5,374			177,000			78,949			—			261,323
(Loss) income from continuing operations before income taxes			(5,374	)		27,932			10,598			—			33,156
Equity in earnings of subsidiaries			28,607			—			—			(28,607	)		—
Provision for income taxes			(2,169	)		12,517			(2,645	)		—			7,703
Income (loss) from continuing operations			25,402			15,415			13,243			(28,607	)		25,453
Loss from discontinued operations, net of income taxes			—			(51	)		—			—			(51	)
Net income (loss)		$	25,402		$	15,364		$	13,243		$	(28,607	)	$	25,402
Other comprehensive loss:
Foreign currency translation loss			—			—			(36,857	)		—			(36,857	)
Other comprehensive loss			—			—			(36,857	)		—			(36,857	)
Comprehensive income (loss)		$	25,402		$	15,364		$	(23,614	)	$	(28,607	)	$	(11,455	)
Acadia Healthcare Company, Inc.
Condensed Consolidating Statement of Comprehensive Income
Three Months Ended September 30, 2013
(In thousands)
		Parent			Combined			Combined			Consolidating			Total
					Subsidiary			Non-			Adjustments			Consolidated
					Guarantors			Guarantors						Amounts
Revenue before provision for doubtful accounts		$	—		$	179,560		$	11,014		$	—		$	190,574
Provision for doubtful accounts			—			(5,660	)		(212	)		—			(5,872	)
Revenue			—			173,900			10,802			—			184,702
Salaries, wages and benefits			1,331			98,166			4,292			—			103,789
Professional fees			—			7,954			1,002			—			8,956
Supplies			—			9,170			636			—			9,806
Rents and leases			—			2,394			262			—			2,656
Other operating expenses			—			19,896			2,449			—			22,345
Depreciation and amortization			—			4,072			342			—			4,414
Interest expense, net			8,542			—			923			—			9,465
Transaction-related expenses			—			984			—			—			984
Total expenses			9,873			142,636			9,906			—			162,415
(Loss) income from continuing operations before income taxes			(9,873	)		31,264			896			—			22,287
Equity in earnings of subsidiaries			21,087			—			—			(21,087	)		—
Provision for income taxes			(3,150	)		10,680			211			—			7,741
Income (loss) from continuing operations			14,364			20,584			685			(21,087	)		14,546
Loss from discontinued operations, net of income taxes			—			(182	)		—			—			(182	)
Net income (loss)		$	14,364		$	20,402		$	685		$	(21,087	)	$	14,364
Comprehensive income (loss)		$	14,364		$	20,402		$	685		$	(21,087	)	$	14,364
Acadia Healthcare Company, Inc.
Condensed Consolidating Statement of Comprehensive Income
Nine Months Ended September 30, 2014
(In thousands)
		Parent			Combined			Combined			Consolidating			Total
					Subsidiary			Non-			Adjustments			Consolidated
					Guarantors			Guarantors						Amounts
Revenue before provision for doubtful accounts		$	—		$	612,801		$	116,983		$	—		$	729,784
Provision for doubtful accounts			—			(17,908	)		(2,176	)		—			(20,084	)
Revenue			—			594,893			114,807			—			709,700
Salaries, wages and benefits			6,975			342,890			58,815			—			408,680
Professional fees			—			28,760			7,391			—			36,151
Supplies			—			30,137			4,585			—			34,722
Rents and leases			—			7,527			1,345			—			8,872
Other operating expenses			—			62,579			16,609			—			79,188
Depreciation and amortization			—			16,540			5,156			—			21,696
Interest expense, net			22,409			6,439			4,657			—			33,505
Gain on foreign currency derivatives			(15,262	)		—			—			—			(15,262	)
Transaction-related expenses			—			10,023			811			—			10,834
Total expenses			14,122			504,895			99,369			—			618,386
(Loss) income from continuing operations before income taxes			(14,122	)		89,998			15,438			—			91,314
Equity in earnings of subsidiaries			69,446			—			—			(69,446	)		—
Provision for income taxes			(5,587	)		36,766			(796	)		—			30,383
Income (loss) from continuing operations			60,911			53,232			16,234			(69,446	)		60,931
Loss from discontinued operations, net of income taxes			—			(20	)		—			—			(20	)
Net income (loss)		$	60,911		$	53,212		$	16,234		$	(69,446	)	$	60,911
Other comprehensive loss:
Foreign currency translation loss			—			—			(36,857	)		—			(36,857	)
Other comprehensive loss			—			—			(36,857	)		—			(36,857	)
Comprehensive income (loss)		$	60,911		$	53,212		$	(20,623	)	$	(69,446	)	$	24,054
Acadia Healthcare Company, Inc.
Condensed Consolidating Statement of Comprehensive Income
Nine Months Ended September 30, 2013
(In thousands)
		Parent			Combined			Combined			Consolidating			Total
					Subsidiary			Non-			Adjustments			Consolidated
					Guarantors			Guarantors						Amounts
Revenue before provision for doubtful accounts		$	—		$	516,467		$	22,763		$	—		$	539,230
Provision for doubtful accounts			—			(14,932	)		(889	)		—			(15,821	)
Revenue			—			501,535			21,874			—			523,409
Salaries, wages and benefits			3,744			285,760			9,400			—			298,904
Professional fees			—			25,447			1,847			—			27,294
Supplies			—			26,718			1,299			—			28,017
Rents and leases			—			6,872			505			—			7,377
Other operating expenses			—			53,922			5,502			—			59,424
Depreciation and amortization			—			11,379			869			—			12,248
Interest expense, net			25,570			—			2,102			—			27,672
Debt extinguishment costs			9,350			—			—			—			9,350
Transaction-related expenses			—			3,813			—			—			3,813
Total expenses			38,664			413,911			21,524			—			474,099
(Loss) income from continuing operations before income taxes			(38,664	)		87,624			350			—			49,310
Equity in earnings of subsidiaries			54,340			—			—			(54,340	)		—
Provision for income taxes			(14,623	)		33,143			(81	)		—			18,439
Income (loss) from continuing operations			30,299			54,481			431			(54,340	)		30,871
Loss from discontinued operations, net of income taxes			—			(572	)		—			—			(572	)
Net income (loss)		$	30,299		$	53,909		$	431		$	(54,340	)	$	30,299
Comprehensive income (loss)		$	30,299		$	53,909		$	431		$	(54,340	)	$	30,299
Acadia Healthcare Company, Inc.
Condensed Consolidating Statement of Cash Flows
Nine Months Ended September 30, 2014
(In thousands)
		Parent			Combined			Combined			Consolidating			Total
					Subsidiary			Non-			Adjustments			Consolidated
					Guarantors			Guarantors						Amounts
Operating activities:
Net income (loss)		$	60,911		$	53,212		$	16,234		$	(69,446	)	$	60,911
Adjustments to reconcile net income (loss) to net cash (used in) provided by continuing operating activities:
Equity in earnings of subsidiaries			(69,446	)		—			—			69,446			—
Depreciation and amortization			—			16,540			5,156			—			21,696
Amortization of debt issuance costs			1,891			—			338			—			2,229
Equity-based compensation expense			6,975			—			—			—			6,975
Deferred income tax expense			(754	)		3,218			2,181			—			4,645
Loss from discontinued operations, net of taxes			—			20			—			—			20
Gain on foreign currency derivatives			(15,262	)		—			—			—			(15,262	)
Other			—			134			29			—			163
Change in operating assets and liabilities, net of effect of acquisitions:
Accounts receivable, net			—			(23,347	)		(2,048	)		—			(25,395	)
Other current assets			—			1,067			255			—			1,322
Other assets			165			(2,086	)		—			(165	)		(2,086	)
Accounts payable and other accrued liabilities			—			(2,752	)		3,830			—			1,078
Accrued salaries and benefits			—			6,546			2,426			—			8,972
Other liabilities			—			3,549			256			—			3,805
Net cash (used in) provided by continuing operating activities			(15,520	)		56,101			28,657			(165	)		69,073
Net cash used in discontinued operating activities			—			(27	)		—			—			(27	)
Net cash (used in) provided by operating activities			(15,520	)		56,074			28,657			(165	)		69,046
Investing activities:
Cash paid for acquisitions, net of cash acquired			—			(722,797	)		—			—			(722,797	)
Cash paid for capital expenditures			—			(60,223	)		(10,457	)		—			(70,680	)
Cash paid for real estate acquisitions			—			(22,247	)		—			—			(22,247	)
Settlement of foreign currency derivatives			15,262			—			—			—			15,262
Other			—			(733	)		—			—			(733	)
Net cash used in investing activities			15,262			(806,000	)		(10,457	)		—			(801,195	)
Financing activities:
Borrowings on long-term debt			307,500			—			—			—			307,500
Borrowings on revolving credit facility			230,500			—			—			—			230,500
Principal payments on revolving credit facility			(120,000	)		—			—			—			(120,000	)
Principal payments on long-term debt			(5,625	)		—			(165	)		165			(5,625	)
Payment of debt issuance costs			(10,909	)		—			—			—			(10,909	)
Issuance of common stock, net			374,431			—			—			—			374,431
Common stock withheld for minimum statutory taxes, net			(3,477	)		—			—			—			(3,477	)
Excess tax benefit from equity awards			3,779			—			—			—			3,779
Cash paid for contingent consideration			—			(5,000	)		—			—			(5,000	)
Cash (used in) provided by intercompany activity			(775,941	)		765,347			8,669			1,925			—
Net cash provided by financing activities			258			760,347			8,504			2,090			771,199
Effect of exchange rate changes on cash			—			—			(1,440	)		—			(1,440	)
Net increase in cash and cash equivalents			—			10,421			25,264			1,925			37,610
Cash and cash equivalents at beginning of the period			—			—			6,494			(1,925	)		4,569
Cash and cash equivalents at end of the period		$	—		$	10,421		$	31,758		$	—		$	42,179
Acadia Healthcare Company, Inc.
Condensed Consolidating Statement of Cash Flows
Nine Months Ended September 30, 2013
(In thousands)
		Parent			Combined			Combined			Consolidating			Total
					Subsidiary			Non-			Adjustments			Consolidated
					Guarantors			Guarantors						Amounts
Operating activities:
Net income (loss)		$	30,299		$	53,909		$	431		$	(54,340	)	$	30,299
Adjustments to reconcile net income (loss) to net cash (used in) provided by continuing operating activities:
Equity in earnings of subsidiaries			(54,340	)		—			—			54,340			—
Depreciation and amortization			—			11,379			869			—			12,248
Amortization of debt issuance costs			1,686			—			—			—			1,686
Equity-based compensation expense			3,744			—			—			—			3,744
Deferred income tax expense			(70	)		10,797			(182	)		—			10,545
Loss from discontinued operations, net of taxes			—			572			—			—			572
Debt extinguishment costs			9,350			—			—			—			9,350
Other			—			16			—			—			16
Change in operating assets and liabilities, net of effect of acquisitions:
Accounts receivable, net			—			(18,920	)		542			—			(18,378	)
Other current assets			—			(5,638	)		(19	)		—			(5,657	)
Other assets			—			(1,676	)		—			—			(1,676	)
Accounts payable and other accrued liabilities			—			2,763			(167	)		—			2,596
Accrued salaries and benefits			—			(2,307	)		193			—			(2,114	)
Other liabilities			—			7,693			(4,155	)		—			3,538
Net cash (used in) provided by continuing operating activities			(9,331	)		58,588			(2,488	)		—			46,769
Net cash used in discontinued operating activities			—			(541	)		—			—			(541	)
Net cash (used in) provided by operating activities			(9,331	)		58,047			(2,488	)		—			46,228
Investing activities:
Cash paid for acquisitions, net of cash acquired			—			(135,605	)		—			—			(135,605	)
Cash paid for capital expenditures			—			(50,378	)		(300	)		—			(50,678	)
Cash paid for real estate acquisitions			—			(4,676	)		—			—			(4,676	)
Other			—			(1,088	)		—			—			(1,088	)
Net cash used in investing activities			—			(191,747	)		(300	)		—			(192,047	)
Financing activities:
Borrowings on long-term debt			150,000			—			—			—			150,000
Borrowings on revolving credit facility			27,500			—			—			—			27,500
Principal payments on revolving credit facility			(8,000	)		—			—			—			(8,000	)
Principal payments on long-term debt			(5,625	)		—			—			—			(5,625	)
Repayment of long-term debt			(52,500	)		—			—			—			(52,500	)
Payment of debt issuance costs			(4,307	)		—			—			—			(4,307	)
Payment of premium on note redemption			(6,759	)		—			—			—			(6,759	)
Common stock withheld for minimum statutory taxes, net			(1,120	)		—			—			—			(1,120	)
Excess tax benefit from equity awards			1,265			—			—			—			1,265
Cash (used in) provided by intercompany activity			(91,123	)		84,393			8,046			(1,316	)		—
Net cash provided by (used in) financing activities			9,331			84,393			8,046			(1,316	)		100,454
Net (decrease) increase in cash and cash equivalents			—			(49,307	)		5,258			(1,316	)		(45,365	)
Cash and cash equivalents at beginning of the period			—			49,307			92			—			49,399
Cash and cash equivalents at end of the period		$	—		$	—		$	5,350		$	(1,316	)	$	4,034

Earnings_Per_Share_Tables

Earnings Per Share (Tables)	9 Months Ended
	Sep. 30, 2014
Earnings Per Share [Abstract]	'
Computation of Basic and Diluted Earnings Per Share	'
	The following table sets forth the computation of basic and diluted earnings per share for the three and nine months ended September 30, 2014 and 2013 (in thousands except per share amounts):
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2014			2013			2014			2013
	Numerator:
	Basic and diluted earnings per share:
	Income from continuing operations	$	25,453		$	14,546		$	60,931		$	30,871
	Loss from discontinued operations		(51	)		(182	)		(20	)		(572	)
	Net income	$	25,402		$	14,364		$	60,911		$	30,299
	Denominator:
	Weighted average shares outstanding for basic earnings per share		59,175			50,040			53,670			49,987
	Effect of dilutive instruments		234			303			252			226
	Shares used in computing diluted earnings per common share		59,409			50,343			53,922			50,213
	Basic earnings per share:
	Income from continuing operations	$	0.43		$	0.29		$	1.14		$	0.62
	Loss from discontinued operations		—			—			—			(0.01	)
	Net income	$	0.43		$	0.29		$	1.14		$	0.61
	Diluted earnings per share:
	Income from continuing operations	$	0.43		$	0.29		$	1.13		$	0.61
	Loss from discontinued operations		—			—			—			(0.01	)
	Net income	$	0.43		$	0.29		$	1.13		$	0.6

Acquisitions_Tables

Acquisitions (Tables)	9 Months Ended
	Sep. 30, 2014
Business Combinations [Abstract]	'
Preliminary Fair Values of Assets Acquired and Liabilities Assumed at Corresponding Acquisition Date	'
	The preliminary fair values of assets acquired and liabilities assumed, at the corresponding acquisition dates, during the nine months ended September 30, 2014 in connection with the McCallum, Partnerships in Care and Pacific Grove acquisitions were as follows (in thousands):
		Partnerships in Care		Other		Total
	Cash	$	11,674	$	—	$	11,674
	Accounts receivable		7,684		2,072		9,756
	Prepaid expenses and other current assets		13,570		169		13,739
	Property and equipment		610,477		11,565		622,042
	Goodwill		117,297		31,586		148,883
	Intangible assets		651		204		855
	Other assets		4,268		3,224		7,492
	Total assets acquired		765,621		48,820		814,441
	Accounts payable		3,958		93		4,051
	Accrued salaries and benefits		10,422		—		10,422
	Other accrued expenses		6,206		840		7,046
	Deferred tax liabilities – noncurrent		50,182		—		50,182
	Other liabilities		6,302		—		6,302
	Total liabilities assumed		77,070		933		78,003
	Net assets acquired	$	688,551	$	47,887	$	736,438
	The fair values of assets acquired and liabilities assumed during 2013, at the corresponding acquisition dates, were as follows (in thousands):
		UMC Facilities		Other		Total
	Cash	$	52	$	873	$	925
	Accounts receivable		4,961		5,840		10,801
	Prepaid expenses and other current assets		691		3,062		3,753
	Property and equipment		22,347		42,672		65,019
	Goodwill		67,589		37,619		105,208
	Intangible assets		1,505		1,910		3,415
	Other assets		4,712		29		4,741
	Total assets acquired		101,857		92,005		193,862
	Accounts payable		1,535		7,487		9,022
	Accrued salaries and benefits		588		3,079		3,667
	Other accrued expenses		315		2,289		2,604
	Other liabilities		—		2,360		2,360
	Total liabilities assumed		2,438		15,215		17,653
	Net assets acquired	$	99,419	$	76,790	$	176,209
Transaction Related Expenses as Incurred	'
	Transaction-related expenses comprised the following costs for the three and nine months ended September 30, 2014 and 2013 (in thousands):
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2014		2013		2014		2013
	Legal, accounting and other costs	$	5,935	$	841	$	10,071	$	2,644
	Severance and contract termination costs		304		143		763		1,169
		$	6,239	$	984	$	10,834	$	3,813
Pro Forma Financial Information for Acquisitions Occurred	'
	The following table provides certain pro forma financial information for the Company as if the 2013 and 2014 Acquisitions had occurred as of January 1, 2013 (in thousands):
		Three Months Ended				Nine Months Ended
		September 30,				September 30,
		2014		2013		2014		2013
	Revenue	$	296,479	$	261,409	$	860,151	$	764,605
	Income from continuing operations, before income taxes	$	33,406	$	12,044	$	64,607	$	19,707

Other_Intangible_Assets_Tables

Other Intangible Assets (Tables)	9 Months Ended
	Sep. 30, 2014
Goodwill and Intangible Assets Disclosure [Abstract]	'
Other Identifiable Intangible Assets and Related Accumulated Amortization	'
	Other identifiable intangible assets and related accumulated amortization consisted of the following as of September 30, 2014 and December 31, 2013 (in thousands):
		Gross Carrying Amount				Accumulated Amortization
		September 30,		December 31,		September 30,			December 31,
		2014		2013		2014			2013
	Intangible assets subject to amortization:
	Contract intangible assets	$	2,100	$	2,100	$	(1,225	)	$	(910	)
	Non-compete agreements		1,247		1,247		(1,121	)		(1,021	)
			3,347		3,347		(2,346	)		(1,931	)
	Intangible assets not subject to amortization:
	Licenses and accreditations		9,211		8,391		—			—
	Trade names		3,000		3,000		—			—
	Certificates of need		8,409		7,761		—			—
			20,620		19,152		—			—
	Total	$	23,967	$	22,499	$	(2,346	)	$	(1,931	)

Property_and_Equipment_Tables

Property and Equipment (Tables)	9 Months Ended
	Sep. 30, 2014
Property, Plant and Equipment [Abstract]	'
Summary of Property and Equipment	'
	Property and equipment consists of the following as of September 30, 2014 and December 31, 2013 (in thousands):
		September 30, 2014			December 31, 2013
	Land	$	132,114		$	58,947
	Building and improvements		829,078			259,523
	Equipment		69,538			36,742
	Construction in progress		45,885			44,186
			1,076,615			399,398
	Less accumulated depreciation		(50,237	)		(29,289	)
	Property and equipment, net	$	1,026,378		$	370,109

Discontinued_Operations_Tables

Discontinued Operations (Tables)	9 Months Ended
	Sep. 30, 2014
Discontinued Operations and Disposal Groups [Abstract]	'
Summary of Results from Discontinued Operations	'
	A summary of results from discontinued operations is as follows (in thousands):
		Three Months Ended						Nine Months Ended
		September 30,						September 30,
		2014			2013			2014			2013
	Revenue	$	—		$	—		$	—		$	—
	Loss from discontinued operations, net of income taxes	$	(51	)	$	(182	)	$	(20	)	$	(572	)

LongTerm_Debt_Tables

Long-Term Debt (Tables)	9 Months Ended
	Sep. 30, 2014
Debt Disclosure [Abstract]	'
Components of Long Term Debt	'
	Long-term debt consisted of the following (in thousands):
		September 30, 2014			December 31, 2013
	Amended and Restated Senior Credit Facility:
	Senior Secured Term Loans	$	294,375		$	292,500
	Senior Secured Revolving Line of Credit		164,000			53,500
	12.875% Senior Notes due 2018		96,366			96,216
	6.125% Senior Notes due 2021		150,000			150,000
	5.125% Senior Notes due 2022		300,000			—
	9.0% and 9.5% Revenue Bonds		24,581			24,920
			1,029,322			617,136
	Less: current portion		(13,320	)		(15,195	)
	Long-term debt	$	1,016,002		$	601,941

EquityBased_Compensation_Table

Equity-Based Compensation (Tables)	9 Months Ended
	Sep. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Stock Option Activity	'
	Stock option activity during 2013 and 2014 was as follows (aggregate intrinsic value in thousands):
		Number of			Weighted			Weighted		Aggregate
		Options			Average			Average		Intrinsic
					Exercise Price			Remaining		Value
								Contractual
								Term (in years)
	Options outstanding at January 1, 2013		555,097		$	13.13			7.53	$	5,632
	Options granted		411,800			30.55			9.3		2,059
	Options exercised		(126,662	)		9.36			N/A		2,803
	Options cancelled		(41,426	)		23.5			N/A		N/A
	Options outstanding at December 31, 2013		798,809			21.93			8.2		10,700
	Options granted		218,263			49.68			9.26		97
	Options exercised		(182,888	)		15.31			N/A		4,994
	Options cancelled		(55,889	)		33.65			N/A		N/A
	Options outstanding at September 30, 2014		778,295			31.92			8.01		14,349
	Options exercisable at December 31, 2013		133,647		$	11.15			4.81	$	3,472
	Options exercisable at September 30, 2014		118,008		$	29.04			5.42	$	3,840
Restricted Stock Activity	'
	Restricted stock activity during 2013 and 2014 was as follows:
		Number of			Weighted
		Shares			Average
					Grant-Date
					Fair Value
	Unvested at January 1, 2013		318,063		$	15.73
	Granted		290,845			31.31
	Cancelled		(53,056	)		21.27
	Vested		(94,155	)		15.52
	Unvested at December 31, 2013		461,697		$	24.96
	Granted		456,384			48.89
	Cancelled		(68,769	)		36
	Vested		(113,376	)		23.84
	Unvested at September 30, 2014		735,936		$	38.95
Restricted Stock Unit Activity	'
	Restricted stock unit activity during 2013 and 2014 was as follows:
		Number of			Weighted
		Units			Average
					Grant-Date
					Fair Value
	Unvested at January 1, 2013		68,628		$	16.11
	Granted		72,876			29.39
	Cancelled		—			—
	Vested		(45,753	)		16.11
	Unvested at December 31, 2013		95,751		$	23.05
	Granted		108,449			50.75
	Cancelled		—			—
	Vested		(79,087	)		21.81
	Unvested at September 30, 2014		125,113		$	38.73
Schedule of Stock Options Valuation Assumptions	'
	The following table summarizes the grant-date fair value of options and the assumptions used to develop the fair value estimates for options granted during the nine months ended September 30, 2014 and year ended December 31, 2013:
		September 30, 2014			December 31, 2013
	Weighted average grant-date fair value of options	$	17.8		$	11.62
	Risk-free interest rate		1.7	%		1	%
	Expected volatility		36	%		40	%
	Expected life (in years)		5.5			5.5

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2014
Fair Value Disclosures [Abstract]	'
Carrying Amounts and Fair Values of Company's Amended and Restated Senior Credit Facilities and Contingent Consideration Liability	'
	The carrying amounts and fair values of the Company’s Amended and Restated Senior Credit Facility, 12.875% Senior Notes, 6.125% Senior Notes, 5.125% Senior Notes, 9.0% and 9.5% Revenue Bonds, contingent consideration liability and foreign currency derivatives as of September 30, 2014 and December 31, 2013 were as follows (in thousands):
		Carrying Amount				Fair Value
		September 30,		December 31,		September 30,		December 31,
		2014		2013		2014		2013
	Amended and Restated Senior Credit Facility	$	458,375	$	346,000	$	458,375	$	346,000
	12.875% Senior Notes due 2018	$	96,366	$	96,216	$	111,881	$	118,706
	6.125% Senior Notes due 2021	$	150,000	$	150,000	$	152,625	$	155,625
	5.125% Senior Notes due 2022	$	300,000		—	$	290,250		—
	9.0% and 9.5% Revenue Bonds	$	24,581	$	24,920	$	24,581	$	24,920
	Contingent consideration liabilities	$	3,467	$	6,500	$	3,467	$	6,500

Segment_Information_Tables

Segment Information (Tables)	9 Months Ended
	Sep. 30, 2014
Assets [Member]	'
Summary of Financial Information by Operating Segment	'
			September 30,			December 31,
			2014			2013
	Assets:
	U.S. Facilities		$	1,291,961		$	1,155,813
	U.K. Facilities			743,288			—
	Corporate and Other			105,219			68,846
			$	2,140,468		$	1,224,659
Goodwill [Member]	'
Summary of Financial Information by Operating Segment	'
			U.S. Facilities			U.K. Facilities			Corporate			Consolidated
									and Other
	Goodwill:
	Balance at January 1, 2014		$	661,549		$	—		$	—		$	661,549
	Increase from 2014 acquisitions			31,586			117,297			—			148,883
	Foreign currency translation loss			—			(6,199	)		—			(6,199	)
	Other			414			—			—			414
	Balance at September 30, 2014		$	693,549		$	111,098		$	—		$	804,647
Operating Income (Loss) [Member]	'
Summary of Financial Information by Operating Segment	'
	The following tables set forth the financial information by operating segment, including a reconciliation of Segment EBITDA to income from continuing operations before income taxes (in thousands):
			Three Months Ended September 30, 2014
			U.S. Facilities			U.K. Facilities			Corporate			Consolidated
									and Other
	Revenue		$	217,427		$	76,026		$	1,026		$	294,479
	Segment EBITDA (1)			53,814			20,253			(9,001	)		65,066
	Plus (less):
	Equity-based compensation expense			—			—			(2,805	)		(2,805	)
	Gain on foreign currency derivatives			—			—			1,527			1,527
	Transaction-related expenses			—			(811	)		(5,428	)		(6,239	)
	Interest expense, net			(517	)		(9,451	)		(4,100	)		(14,068	)
	Depreciation and amortization			(5,475	)		(4,094	)		(756	)		(10,325	)
	Income (loss) from continuing operations before income taxes		$	47,822		$	5,897		$	(20,563	)	$	33,156
			Three Months Ended September 30, 2013
			U.S. Facilities			U.K. Facilities			Corporate			Consolidated
									and Other
	Revenue		$	184,071		$	—		$	631		$	184,702
	Segment EBITDA (1)			45,115			—			(6,634	)		38,481
	Plus (less):
	Equity-based compensation expense			—			—			(1,331	)		(1,331	)
	Transaction-related expenses			—			—			(984	)		(984	)
	Interest expense, net			(926	)		—			(8,539	)		(9,465	)
	Depreciation and amortization			(3,727	)		—			(687	)		(4,414	)
	Income (loss) from continuing operations before income taxes		$	40,462		$	—		$	(18,175	)	$	22,287
			Nine Months Ended September 30, 2014
			U.S. Facilities			U.K. Facilities			Corporate			Consolidated
									and Other
	Revenue		$	630,825		$	76,026		$	2,849		$	709,700
	Segment EBITDA (1)			154,377			20,253			(25,568	)		149,062
	Plus (less):
	Equity-based compensation expense			—			—			(6,975	)		(6,975	)
	Gain on foreign currency derivatives			—			—			15,262			15,262
	Transaction-related expenses			—			(811	)		(10,023	)		(10,834	)
	Interest expense, net			(1,665	)		(9,451	)		(22,389	)		(33,505	)
	Depreciation and amortization			(15,381	)		(4,094	)		(2,221	)		(21,696	)
	Income (loss) from continuing operations before income taxes		$	137,331		$	5,897		$	(51,914	)	$	91,314
			Nine Months Ended September 30, 2013
			U.S. Facilities			U.K. Facilities			Corporate			Consolidated
									and Other
	Revenue		$	521,368		$	—		$	2,041		$	523,409
	Segment EBITDA (1)			126,017			—			(19,880	)		106,137
	Plus (less):
	Equity-based compensation expense			—			—			(3,744	)		(3,744	)
	Debt extinguishment costs			—			—			(9,350	)		(9,350	)
	Transaction-related expenses			—			—			(3,813	)		(3,813	)
	Interest expense, net			(2,114	)		—			(25,558	)		(27,672	)
	Depreciation and amortization			(10,375	)		—			(1,873	)		(12,248	)
	Income (loss) from continuing operations before income taxes		$	113,528		$	—		$	(64,218	)	$	49,310
	-1	Segment EBITDA is defined as income from continuing operations before provision for income taxes, equity-based compensation expense, debt extinguishment costs, gain on foreign currency derivatives, transaction-related expenses, interest expense and depreciation and amortization. The Company uses Segment EBITDA as an analytical indicator to measure the performance of the Company’s segments and to develop strategic objectives and operating plans for those segments. Segment EBITDA is commonly used as an analytical indicator within the health care industry, and also serves as a measure of leverage capacity and debt service ability. Segment EBITDA should not be considered as a measure of financial performance under generally accepted accounting principles, and the items excluded from Segment EBITDA are significant components in understanding and assessing financial performance. Because Segment EBITDA is not a measurement determined in accordance with generally accepted accounting principles and is thus susceptible to varying calculations, Segment EBITDA, as presented, may not be comparable to other similarly titled measures of other companies.

Partnerships_in_Care_Pension_P1

Partnerships in Care Pension Plan (Tables)	9 Months Ended
	Sep. 30, 2014
Compensation and Retirement Disclosure [Abstract]	'
Summary of Changes in Partnerships in Care Pension Plan Pension Liability	'
	The following table summarizes changes in the Partnerships in Care Pension Plan pension liability (in thousands):
	Pension liability at July 1, 2014	$	6,302
	Employer contributions		(1,097	)
	Net pension benefit expense		897
	Foreign currency translation loss		(327	)
	Pension liability at September 30, 2014	$	5,775

Financial_Information_for_the_1

Financial Information for the Company and Its Subsidiaries (Tables)	9 Months Ended
	Sep. 30, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Summary of Condensed Consolidating Balance Sheets	'
	Acadia Healthcare Company, Inc.
	Condensed Consolidating Balance Sheets
	September 30, 2014
	(In thousands)
		Parent			Combined			Combined			Consolidating			Total
					Subsidiary			Non-			Adjustments			Consolidated
					Guarantors			Guarantors						Amounts
	Current assets:
	Cash and cash equivalents	$	—		$	10,421		$	31,758		$	—		$	42,179
	Accounts receivable, net		—			111,706			18,547			—			130,253
	Deferred tax assets		—			18,894			888			—			19,782
	Other current assets		—			31,772			5,854			—			37,626
	Total current assets		—			172,793			57,047			—			229,840
	Property and equipment, net		—			412,958			613,420			—			1,026,378
	Goodwill		—			596,214			208,433			—			804,647
	Intangible assets, net		—			19,015			2,606			—			21,621
	Deferred tax assets – noncurrent		3,347			—			16,916			(4,330	)		15,933
	Investment in subsidiaries		1,693,275			—			—			(1,693,275	)		—
	Other assets		204,562			17,926			2,321			(182,760	)		42,049
	Total assets	$	1,901,184		$	1,218,906		$	900,743		$	(1,880,365	)	$	2,140,468
	Current liabilities:
	Current portion of long-term debt	$	13,125		$	—		$	195		$	—		$	13,320
	Accounts payable		—			34,774			8,486			—			43,260
	Accrued salaries and benefits		—			42,515			13,698			—			56,213
	Other accrued liabilities		9,867			12,620			7,260			—			29,747
	Total current liabilities		22,992			89,909			29,639			—			142,540
	Long-term debt		991,616			—			207,146			(182,760	)		1,016,002
	Deferred tax liabilities – noncurrent		—			19,512			49,589			(4,330	)		64,771
	Other liabilities		—			24,361			6,218			—			30,579
	Total liabilities		1,014,608			133,782			292,592			(187,090	)		1,253,892
	Total equity		886,576			1,085,124			608,151			(1,693,275	)		886,576
	Total liabilities and equity	$	1,901,184		$	1,218,906		$	900,743		$	(1,880,365	)	$	2,140,468
	Acadia Healthcare Company, Inc.
	Condensed Consolidating Balance Sheets
	December 31, 2013
	(In thousands)
		Parent			Combined			Combined			Consolidating			Total
					Subsidiary			Non-			Adjustments			Consolidated
					Guarantors			Guarantors						Amounts
	Current assets:
	Cash and cash equivalents	$	—		$	—		$	6,494		$	(1,925	)	$	4,569
	Accounts receivable, net		—			86,597			9,288			—			95,885
	Deferred tax assets		—			15,284			419			—			15,703
	Other current assets		—			27,886			1,083			—			28,969
	Total current assets		—			129,767			17,284			(1,925	)		145,126
	Property and equipment, net		—			340,175			29,934			—			370,109
	Goodwill		—			564,539			97,010			—			661,549
	Intangible assets, net		—			18,578			1,990			—			20,568
	Investment in subsidiaries		1,034,160			—			—			(1,034,160	)		—
	Other assets		46,236			11,675			8,082			(38,686	)		27,307
	Total assets	$	1,080,396		$	1,064,734		$	154,300		$	(1,074,771	)	$	1,224,659
	Current liabilities:
	Current portion of long-term debt	$	15,000		$	—		$	195		$	—		$	15,195
	Accounts payable		—			36,289			1,662			(1,925	)		36,026
	Accrued salaries and benefits		—			36,027			1,694			—			37,721
	Other accrued liabilities		4,876			19,982			890			—			25,748
	Total current liabilities		19,876			92,298			4,441			(1,925	)		114,690
	Long-term debt		577,216			—			57,650			(32,925	)		601,941
	Deferred tax liabilities – noncurrent		2,594			11,138			—			(5,761	)		7,971
	Other liabilities		—			19,347			—			—			19,347
	Total liabilities		599,686			122,783			62,091			(40,611	)		743,949
	Total equity		480,710			941,951			92,209			(1,034,160	)		480,710
	Total liabilities and equity	$	1,080,396		$	1,064,734		$	154,300		$	(1,074,771	)	$	1,224,659
Summary of Condensed Consolidating Statement of Comprehensive Loss	'
	Acadia Healthcare Company, Inc.
	Condensed Consolidating Statement of Comprehensive Loss
	Three Months Ended September 30, 2014
	(In thousands)
		Parent			Combined			Combined			Consolidating			Total
					Subsidiary			Non-			Adjustments			Consolidated
					Guarantors			Guarantors						Amounts
	Revenue before provision for doubtful accounts	$	—		$	212,376		$	90,625		$	—		$	303,001
	Provision for doubtful accounts		—			(7,444	)		(1,078	)		—			(8,522	)
	Revenue		—			204,932			89,547			—			294,479
	Salaries, wages and benefits		2,805			117,261			48,566			—			168,632
	Professional fees		—			9,816			5,062			—			14,878
	Supplies		—			10,784			3,278			—			14,062
	Rents and leases		—			2,419			795			—			3,214
	Other operating expenses		—			18,979			12,453			—			31,432
	Depreciation and amortization		—			5,874			4,451			—			10,325
	Interest expense, net		4,096			6,439			3,533			—			14,068
	Gain on foreign currency derivatives		(1,527	)		—			—			—			(1,527	)
	Transaction-related expenses		—			5,428			811			—			6,239
	Total expenses		5,374			177,000			78,949			—			261,323
	(Loss) income from continuing operations before income taxes		(5,374	)		27,932			10,598			—			33,156
	Equity in earnings of subsidiaries		28,607			—			—			(28,607	)		—
	Provision for income taxes		(2,169	)		12,517			(2,645	)		—			7,703
	Income (loss) from continuing operations		25,402			15,415			13,243			(28,607	)		25,453
	Loss from discontinued operations, net of income taxes		—			(51	)		—			—			(51	)
	Net income (loss)	$	25,402		$	15,364		$	13,243		$	(28,607	)	$	25,402
	Other comprehensive loss:
	Foreign currency translation loss		—			—			(36,857	)		—			(36,857	)
	Other comprehensive loss		—			—			(36,857	)		—			(36,857	)
	Comprehensive income (loss)	$	25,402		$	15,364		$	(23,614	)	$	(28,607	)	$	(11,455	)
	Acadia Healthcare Company, Inc.
	Condensed Consolidating Statement of Comprehensive Income
	Three Months Ended September 30, 2013
	(In thousands)
		Parent			Combined			Combined			Consolidating			Total
					Subsidiary			Non-			Adjustments			Consolidated
					Guarantors			Guarantors						Amounts
	Revenue before provision for doubtful accounts	$	—		$	179,560		$	11,014		$	—		$	190,574
	Provision for doubtful accounts		—			(5,660	)		(212	)		—			(5,872	)
	Revenue		—			173,900			10,802			—			184,702
	Salaries, wages and benefits		1,331			98,166			4,292			—			103,789
	Professional fees		—			7,954			1,002			—			8,956
	Supplies		—			9,170			636			—			9,806
	Rents and leases		—			2,394			262			—			2,656
	Other operating expenses		—			19,896			2,449			—			22,345
	Depreciation and amortization		—			4,072			342			—			4,414
	Interest expense, net		8,542			—			923			—			9,465
	Transaction-related expenses		—			984			—			—			984
	Total expenses		9,873			142,636			9,906			—			162,415
	(Loss) income from continuing operations before income taxes		(9,873	)		31,264			896			—			22,287
	Equity in earnings of subsidiaries		21,087			—			—			(21,087	)		—
	Provision for income taxes		(3,150	)		10,680			211			—			7,741
	Income (loss) from continuing operations		14,364			20,584			685			(21,087	)		14,546
	Loss from discontinued operations, net of income taxes		—			(182	)		—			—			(182	)
	Net income (loss)	$	14,364		$	20,402		$	685		$	(21,087	)	$	14,364
	Comprehensive income (loss)	$	14,364		$	20,402		$	685		$	(21,087	)	$	14,364
	Acadia Healthcare Company, Inc.
	Condensed Consolidating Statement of Comprehensive Income
	Nine Months Ended September 30, 2014
	(In thousands)
		Parent			Combined			Combined			Consolidating			Total
					Subsidiary			Non-			Adjustments			Consolidated
					Guarantors			Guarantors						Amounts
Revenue before provision for doubtful accounts	$	—		$	612,801		$	116,983		$	—		$	729,784
Provision for doubtful accounts		—			(17,908	)		(2,176	)		—			(20,084	)
Revenue		—			594,893			114,807			—			709,700
Salaries, wages and benefits		6,975			342,890			58,815			—			408,680
Professional fees		—			28,760			7,391			—			36,151
Supplies		—			30,137			4,585			—			34,722
Rents and leases		—			7,527			1,345			—			8,872
Other operating expenses		—			62,579			16,609			—			79,188
Depreciation and amortization		—			16,540			5,156			—			21,696
Interest expense, net		22,409			6,439			4,657			—			33,505
Gain on foreign currency derivatives		(15,262	)		—			—			—			(15,262	)
Transaction-related expenses		—			10,023			811			—			10,834
Total expenses		14,122			504,895			99,369			—			618,386
(Loss) income from continuing operations before income taxes		(14,122	)		89,998			15,438			—			91,314
Equity in earnings of subsidiaries		69,446			—			—			(69,446	)		—
Provision for income taxes		(5,587	)		36,766			(796	)		—			30,383
Income (loss) from continuing operations		60,911			53,232			16,234			(69,446	)		60,931
Loss from discontinued operations, net of income taxes		—			(20	)		—			—			(20	)
Net income (loss)	$	60,911		$	53,212		$	16,234		$	(69,446	)	$	60,911
Other comprehensive loss:
Foreign currency translation loss		—			—			(36,857	)		—			(36,857	)
Other comprehensive loss		—			—			(36,857	)		—			(36,857	)
Comprehensive income (loss)	$	60,911		$	53,212		$	(20,623	)	$	(69,446	)	$	24,054
Acadia Healthcare Company, Inc.
Condensed Consolidating Statement of Comprehensive Income
Nine Months Ended September 30, 2013
(In thousands)
	Parent			Combined			Combined			Consolidating			Total
				Subsidiary			Non-			Adjustments			Consolidated
				Guarantors			Guarantors						Amounts
Revenue before provision for doubtful accounts	$	—		$	516,467		$	22,763		$	—		$	539,230
Provision for doubtful accounts		—			(14,932	)		(889	)		—			(15,821	)
Revenue		—			501,535			21,874			—			523,409
Salaries, wages and benefits		3,744			285,760			9,400			—			298,904
Professional fees		—			25,447			1,847			—			27,294
Supplies		—			26,718			1,299			—			28,017
Rents and leases		—			6,872			505			—			7,377
Other operating expenses		—			53,922			5,502			—			59,424
Depreciation and amortization		—			11,379			869			—			12,248
Interest expense, net		25,570			—			2,102			—			27,672
Debt extinguishment costs		9,350			—			—			—			9,350
Transaction-related expenses		—			3,813			—			—			3,813
Total expenses		38,664			413,911			21,524			—			474,099
(Loss) income from continuing operations before income taxes		(38,664	)		87,624			350			—			49,310
Equity in earnings of subsidiaries		54,340			—			—			(54,340	)		—
Provision for income taxes		(14,623	)		33,143			(81	)		—			18,439
Income (loss) from continuing operations		30,299			54,481			431			(54,340	)		30,871
Loss from discontinued operations, net of income taxes		—			(572	)		—			—			(572	)
Net income (loss)	$	30,299		$	53,909		$	431		$	(54,340	)	$	30,299
Comprehensive income (loss)	$	30,299		$	53,909		$	431		$	(54,340	)	$	30,299
Summary of Condensed Consolidating Statement of Cash Flows	'
	Acadia Healthcare Company, Inc.
	Condensed Consolidating Statement of Cash Flows
	Nine Months Ended September 30, 2014
	(In thousands)
		Parent			Combined			Combined			Consolidating			Total
					Subsidiary			Non-			Adjustments			Consolidated
					Guarantors			Guarantors						Amounts
	Operating activities:
	Net income (loss)	$	60,911		$	53,212		$	16,234		$	(69,446	)	$	60,911
	Adjustments to reconcile net income (loss) to net cash (used in) provided by continuing operating activities:
	Equity in earnings of subsidiaries		(69,446	)		—			—			69,446			—
	Depreciation and amortization		—			16,540			5,156			—			21,696
	Amortization of debt issuance costs		1,891			—			338			—			2,229
	Equity-based compensation expense		6,975			—			—			—			6,975
	Deferred income tax expense		(754	)		3,218			2,181			—			4,645
	Loss from discontinued operations, net of taxes		—			20			—			—			20
	Gain on foreign currency derivatives		(15,262	)		—			—			—			(15,262	)
	Other		—			134			29			—			163
	Change in operating assets and liabilities, net of effect of acquisitions:
	Accounts receivable, net		—			(23,347	)		(2,048	)		—			(25,395	)
	Other current assets		—			1,067			255			—			1,322
	Other assets		165			(2,086	)		—			(165	)		(2,086	)
	Accounts payable and other accrued liabilities		—			(2,752	)		3,830			—			1,078
	Accrued salaries and benefits		—			6,546			2,426			—			8,972
	Other liabilities		—			3,549			256			—			3,805
	Net cash (used in) provided by continuing operating activities		(15,520	)		56,101			28,657			(165	)		69,073
	Net cash used in discontinued operating activities		—			(27	)		—			—			(27	)
	Net cash (used in) provided by operating activities		(15,520	)		56,074			28,657			(165	)		69,046
	Investing activities:
	Cash paid for acquisitions, net of cash acquired		—			(722,797	)		—			—			(722,797	)
	Cash paid for capital expenditures		—			(60,223	)		(10,457	)		—			(70,680	)
	Cash paid for real estate acquisitions		—			(22,247	)		—			—			(22,247	)
	Settlement of foreign currency derivatives		15,262			—			—			—			15,262
	Other		—			(733	)		—			—			(733	)
	Net cash used in investing activities		15,262			(806,000	)		(10,457	)		—			(801,195	)
	Financing activities:
	Borrowings on long-term debt		307,500			—			—			—			307,500
	Borrowings on revolving credit facility		230,500			—			—			—			230,500
	Principal payments on revolving credit facility		(120,000	)		—			—			—			(120,000	)
	Principal payments on long-term debt		(5,625	)		—			(165	)		165			(5,625	)
	Payment of debt issuance costs		(10,909	)		—			—			—			(10,909	)
	Issuance of common stock, net		374,431			—			—			—			374,431
	Common stock withheld for minimum statutory taxes, net		(3,477	)		—			—			—			(3,477	)
	Excess tax benefit from equity awards		3,779			—			—			—			3,779
	Cash paid for contingent consideration		—			(5,000	)		—			—			(5,000	)
	Cash (used in) provided by intercompany activity		(775,941	)		765,347			8,669			1,925			—
	Net cash provided by financing activities		258			760,347			8,504			2,090			771,199
	Effect of exchange rate changes on cash		—			—			(1,440	)		—			(1,440	)
	Net increase in cash and cash equivalents		—			10,421			25,264			1,925			37,610
	Cash and cash equivalents at beginning of the period		—			—			6,494			(1,925	)		4,569
	Cash and cash equivalents at end of the period	$	—		$	10,421		$	31,758		$	—		$	42,179
	Acadia Healthcare Company, Inc.
	Condensed Consolidating Statement of Cash Flows
	Nine Months Ended September 30, 2013
	(In thousands)
		Parent			Combined			Combined			Consolidating			Total
					Subsidiary			Non-			Adjustments			Consolidated
					Guarantors			Guarantors						Amounts
	Operating activities:
	Net income (loss)	$	30,299		$	53,909		$	431		$	(54,340	)	$	30,299
	Adjustments to reconcile net income (loss) to net cash (used in) provided by continuing operating activities:
	Equity in earnings of subsidiaries		(54,340	)		—			—			54,340			—
	Depreciation and amortization		—			11,379			869			—			12,248
Amortization of debt issuance costs		1,686			—			—			—			1,686
Equity-based compensation expense		3,744			—			—			—			3,744
Deferred income tax expense		(70	)		10,797			(182	)		—			10,545
Loss from discontinued operations, net of taxes		—			572			—			—			572
Debt extinguishment costs		9,350			—			—			—			9,350
Other		—			16			—			—			16
Change in operating assets and liabilities, net of effect of acquisitions:
Accounts receivable, net		—			(18,920	)		542			—			(18,378	)
Other current assets		—			(5,638	)		(19	)		—			(5,657	)
Other assets		—			(1,676	)		—			—			(1,676	)
Accounts payable and other accrued liabilities		—			2,763			(167	)		—			2,596
Accrued salaries and benefits		—			(2,307	)		193			—			(2,114	)
Other liabilities		—			7,693			(4,155	)		—			3,538
Net cash (used in) provided by continuing operating activities		(9,331	)		58,588			(2,488	)		—			46,769
Net cash used in discontinued operating activities		—			(541	)		—			—			(541	)
Net cash (used in) provided by operating activities		(9,331	)		58,047			(2,488	)		—			46,228
Investing activities:
Cash paid for acquisitions, net of cash acquired		—			(135,605	)		—			—			(135,605	)
Cash paid for capital expenditures		—			(50,378	)		(300	)		—			(50,678	)
Cash paid for real estate acquisitions		—			(4,676	)		—			—			(4,676	)
Other		—			(1,088	)		—			—			(1,088	)
Net cash used in investing activities		—			(191,747	)		(300	)		—			(192,047	)
Financing activities:
Borrowings on long-term debt		150,000			—			—			—			150,000
Borrowings on revolving credit facility		27,500			—			—			—			27,500
Principal payments on revolving credit facility		(8,000	)		—			—			—			(8,000	)
Principal payments on long-term debt		(5,625	)		—			—			—			(5,625	)
Repayment of long-term debt		(52,500	)		—			—			—			(52,500	)
Payment of debt issuance costs		(4,307	)		—			—			—			(4,307	)
Payment of premium on note redemption		(6,759	)		—			—			—			(6,759	)
Common stock withheld for minimum statutory taxes, net		(1,120	)		—			—			—			(1,120	)
Excess tax benefit from equity awards		1,265			—			—			—			1,265
Cash (used in) provided by intercompany activity		(91,123	)		84,393			8,046			(1,316	)		—
Net cash provided by (used in) financing activities		9,331			84,393			8,046			(1,316	)		100,454
Net (decrease) increase in cash and cash equivalents		—			(49,307	)		5,258			(1,316	)		(45,365	)
Cash and cash equivalents at beginning of the period		—			49,307			92			—			49,399
Cash and cash equivalents at end of the period	$	—		$	—		$	5,350		$	(1,316	)	$	4,034

Description_of_Business_and_Ba1

Description of Business and Basis of Presentation - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2014
	Facility
	Beds
Business And Basis Of Presentation [Line Items]	'
Number of states covered under inpatient psychiatric facilities	24
Percentage of ownership in subsidiaries	100.00%
Behavioral Healthcare Facilities [Member]	'
Business And Basis Of Presentation [Line Items]	'
Number of inpatient psychiatric facilities	76
Number of inpatient psychiatric beds	5,800

Earnings_Per_Share_Computation

Earnings Per Share - Computation of Basic and Diluted Earnings Per Share (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Basic and diluted earnings per share:	'	'	'	'
Income from continuing operations	$25,453	$14,546	$60,931	$30,871
Loss from discontinued operations	-51	-182	-20	-572
Net income	$25,402	$14,364	$60,911	$30,299
Denominator:	'	'	'	'
Weighted average shares outstanding for basic earnings per share	59,175	50,040	53,670	49,987
Effect of dilutive instruments	234	303	252	226
Shares used in computing diluted earnings per common share	59,409	50,343	53,922	50,213
Basic earnings per share:	'	'	'	'
Income from continuing operations	$0.43	$0.29	$1.14	$0.62
Loss from discontinued operations	'	'	'	($0.01)
Net income	$0.43	$0.29	$1.14	$0.61
Diluted earnings per share:	'	'	'	'
Income from continuing operations	$0.43	$0.29	$1.13	$0.61
Loss from discontinued operations	'	'	'	($0.01)
Net income	$0.43	$0.29	$1.13	$0.60

Earnings_Per_Share_Additional_

Earnings Per Share - Additional Information (Detail)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Earnings Per Share [Abstract]	'	'	'	'
Excluded common stock for computation of diluted earnings per share	0.5	0.4	0.7	0.7

Acquisitions_Additional_Inform

Acquisitions - Additional Information (Detail) (USD $)

3 Months Ended

9 Months Ended

3 Months Ended

9 Months Ended

0 Months Ended

0 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

0 Months Ended

0 Months Ended

0 Months Ended

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Sep. 30, 2014

Sep. 30, 2013

Jul. 01, 2014

Sep. 30, 2014

Jul. 01, 2014

Jan. 01, 2014

Jan. 01, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

1-May-13

Sep. 30, 2014

Sep. 30, 2014

Sep. 03, 2014

Sep. 30, 2014

Sep. 03, 2014

Jul. 01, 2014

Jul. 01, 2014

Jul. 01, 2014

Jul. 01, 2014

Pro Forma Information [Member]

Pro Forma Information [Member]

Pro Forma Information [Member]

Pro Forma Information [Member]

5.125% Senior Notes due 2022 [Member]

5.125% Senior Notes due 2022 [Member]

5.125% Senior Notes due 2022 [Member]

Pacific Grove [Member]

Pacific Grove [Member]

Cascade Behavioral Hospital [Member]

Longleaf Hospital [Member]

The Refuge [Member]

UMC Facilities [Member]

UMC Facilities [Member]

Delta Medical Center [Member]

Greenleaf Center [Member]

McCallum [Member]

McCallum [Member]

McCallum [Member]

Partnerships In Care [Member]

Partnerships In Care [Member]

Partnerships In Care [Member]

Partnerships In Care [Member]

Behavioral Healthcare Facilities [Member]

Behavioral Healthcare Facilities [Member]

Behavioral Healthcare Facilities [Member]

Facility

Beds

5.125% Senior Notes due 2022 [Member]

Foreign Exchange Contract [Member]

Beds

Facility

Beds

Beds

Business Acquisition [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Business acquisition cash paid

'

'

'

'

'

'

'

'

'

'

'

$10,500,000

'

'

'

'

'

'

'

'

$37,400,000

'

'

'

'

'

'

Number of acute inpatient psychiatric beds

'

'

'

'

'

'

'

'

'

'

'

'

68

'

'

'

'

'

'

'

'

'

85

'

1,200

'

'

Cash payments for earn-out agreement

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

6,000,000

6,000,000

'

'

'

'

'

Acquisition completion date

'

'

'

'

'

'

'

'

'

'

'

'

'

1-Dec-13

1-Oct-13

1-Aug-13

1-May-13

'

31-Jan-13

1-Jan-13

'

'

'

1-Jul-14

'

'

'

Total consideration related to acquisition

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

661,700,000

'

'

'

Cash consideration related to acquisition

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

12,000,000

'

'

Fair value of the foreign currency derivative

1,527,000

'

15,262,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

15,300,000

Proceeds from issuance of debt

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

300,000,000

'

Senior notes interest percentage

'

'

374,431,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

374,300,000

'

'

'

Debt instrument maturity date

'

'

'

'

'

'

'

'

1-Jul-22

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1-Jul-22

'

'

'

Senior notes interest percentage

'

'

'

'

'

'

'

'

'

5.13%

5.13%

'

'

'

'

'

'

'

'

'

'

'

'

'

5.13%

'

'

Number of facilities acquired

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2

'

'

'

'

'

23

'

'

'

Pension liability under defined benefit pension plan

6,300,000

'

6,300,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Revenue

296,479,000

261,409,000

860,151,000

764,605,000

117,100,000

24,300,000

184,700,000

52,500,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Income (loss) from continuing operations, before income taxes

$33,406,000

$12,044,000

$64,607,000

$19,707,000

$12,200,000

$900,000

$16,900,000

($1,400,000)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Acquisitions_Preliminary_Fair_

Acquisitions - Preliminary Fair Values of Assets Acquired and Liabilities Assumed at Corresponding Acquisition Date (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Dec. 31, 2013	Sep. 30, 2014	Dec. 31, 2013	Dec. 31, 2013	Sep. 30, 2014	Jul. 01, 2014	Sep. 30, 2014
In Thousands, unless otherwise specified			2013 Acquisitions [Member]	2014 Acquisitions [Member]	UMC Facilities [Member]	Other [Member]	Other [Member]	Partnerships In Care [Member]	Partnerships In Care [Member]
					2013 Acquisitions [Member]	2013 Acquisitions [Member]	2014 Acquisitions [Member]		2014 Acquisitions [Member]
Business Acquisition [Line Items]	'	'	'	'	'	'	'	'	'
Cash	'	'	$925	$11,674	$52	$873	'	$12,000	$11,674
Accounts receivable	'	'	10,801	9,756	4,961	5,840	2,072	'	7,684
Prepaid expenses and other current assets	'	'	3,753	13,739	691	3,062	169	'	13,570
Property and equipment	'	'	65,019	622,042	22,347	42,672	11,565	'	610,477
Goodwill	804,647	661,549	105,208	148,883	67,589	37,619	31,586	'	117,297
Intangible assets	'	'	3,415	855	1,505	1,910	204	'	651
Other assets	'	'	4,741	7,492	4,712	29	3,224	'	4,268
Total assets acquired	'	'	193,862	814,441	101,857	92,005	48,820	'	765,621
Accounts payable	'	'	9,022	4,051	1,535	7,487	93	'	3,958
Accrued salaries and benefits	'	'	3,667	10,422	588	3,079	'	'	10,422
Other accrued expenses	'	'	2,604	7,046	315	2,289	840	'	6,206
Deferred tax liabilities - noncurrent	'	'	'	50,182	'	'	'	'	50,182
Other liabilities	'	'	2,360	6,302	'	2,360	'	'	6,302
Total liabilities assumed	'	'	17,653	78,003	2,438	15,215	933	'	77,070
Net assets acquired	'	'	$176,209	$736,438	$99,419	$76,790	$47,887	'	$688,551

Acquisitions_Transaction_Relat

Acquisitions - Transaction Related Expenses as Incurred (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Business Combinations [Abstract]	'	'	'	'
Legal, accounting and other costs	$5,935	$841	$10,071	$2,644
Severance and contract termination costs	304	143	763	1,169
Transaction-related expenses	$6,239	$984	$10,834	$3,813

Acquisitions_Pro_Forma_Financi

Acquisitions - Pro Forma Financial Information for Acquisitions Occurred (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Business Combinations [Abstract]	'	'	'	'
Revenue	$296,479	$261,409	$860,151	$764,605
Income from continuing operations, before income taxes	$33,406	$12,044	$64,607	$19,707

Other_Intangible_Assets_Other_

Other Intangible Assets - Other Identifiable Intangible Assets and Related Accumulated Amortization (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Schedule Of Finite and Indefinite Lived Other Intangible Assets [Line Items]	'	'
Intangible assets subject to amortization, Gross Carrying Amount	$3,347	$3,347
Intangible assets not subject to amortization, Gross Carrying Amount	20,620	19,152
Total	23,967	22,499
Intangible assets subject to amortization, Accumulated Amortization	-2,346	-1,931
Intangible assets not subject to amortization, Accumulated Amortization	'	'
Total	-2,346	-1,931
Contract Intangible Assets [Member]	'	'
Schedule Of Finite and Indefinite Lived Other Intangible Assets [Line Items]	'	'
Intangible assets subject to amortization, Gross Carrying Amount	2,100	2,100
Intangible assets subject to amortization, Accumulated Amortization	-1,225	-910
Non-Compete Agreements [Member]	'	'
Schedule Of Finite and Indefinite Lived Other Intangible Assets [Line Items]	'	'
Intangible assets subject to amortization, Gross Carrying Amount	1,247	1,247
Intangible assets subject to amortization, Accumulated Amortization	-1,121	-1,021
Licenses and Accreditations [Member]	'	'
Schedule Of Finite and Indefinite Lived Other Intangible Assets [Line Items]	'	'
Intangible assets not subject to amortization, Gross Carrying Amount	9,211	8,391
Intangible assets not subject to amortization, Accumulated Amortization	'	'
Trade Names [Member]	'	'
Schedule Of Finite and Indefinite Lived Other Intangible Assets [Line Items]	'	'
Intangible assets not subject to amortization, Gross Carrying Amount	3,000	3,000
Intangible assets not subject to amortization, Accumulated Amortization	'	'
Certificates of Need [Member]	'	'
Schedule Of Finite and Indefinite Lived Other Intangible Assets [Line Items]	'	'
Intangible assets not subject to amortization, Gross Carrying Amount	8,409	7,761
Intangible assets not subject to amortization, Accumulated Amortization	'	'

Other_Intangible_Assets_Additi

Other Intangible Assets - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Schedule Of Finite and Indefinite Lived Other Intangible Assets [Line Items]	'	'	'	'
Capitalized costs incurred to obtain certificates of need	'	'	$0.40	$0.30
Amortization expense	0.1	0.2	0.4	0.6
Estimated amortization expense, 2014	0.5	'	0.5	'
Estimated amortization expense, 2015	0.5	'	0.5	'
Estimated amortization expense, 2016	0.4	'	0.4	'
Estimated amortization expense, 2017	0	'	0	'
Estimated amortization expense, 2018	0	'	0	'
Contract Intangible Assets [Member]	'	'	'	'
Schedule Of Finite and Indefinite Lived Other Intangible Assets [Line Items]	'	'	'	'
Non-compete agreement term	'	'	'5 years	'
Greenleaf Center [Member] | Certificates of Need [Member]	'	'	'	'
Schedule Of Finite and Indefinite Lived Other Intangible Assets [Line Items]	'	'	'	'
Acquisition of intangible assets with a preliminary fair value	'	'	0.6	'
Delta Medical Center [Member]	'	'	'	'
Schedule Of Finite and Indefinite Lived Other Intangible Assets [Line Items]	'	'	'	'
Acquisition of intangible assets with a preliminary fair value	'	'	0.8	'
Delta Medical Center [Member] | Certificates of Need [Member]	'	'	'	'
Schedule Of Finite and Indefinite Lived Other Intangible Assets [Line Items]	'	'	'	'
Acquisition of intangible assets with a preliminary fair value	'	'	0.6	'
Delta Medical Center [Member] | Licenses and Accreditations [Member]	'	'	'	'
Schedule Of Finite and Indefinite Lived Other Intangible Assets [Line Items]	'	'	'	'
Acquisition of intangible assets with a preliminary fair value	'	'	0.2	'
UMC Facilities [Member]	'	'	'	'
Schedule Of Finite and Indefinite Lived Other Intangible Assets [Line Items]	'	'	'	'
Acquisition of intangible assets with a preliminary fair value	'	'	1.5	'
UMC Facilities [Member] | Certificates of Need [Member]	'	'	'	'
Schedule Of Finite and Indefinite Lived Other Intangible Assets [Line Items]	'	'	'	'
Acquisition of intangible assets with a preliminary fair value	'	'	1.3	'
UMC Facilities [Member] | Licenses and Accreditations [Member]	'	'	'	'
Schedule Of Finite and Indefinite Lived Other Intangible Assets [Line Items]	'	'	'	'
Acquisition of intangible assets with a preliminary fair value	'	'	0.2	'
Longleaf Hospital [Member] | Licenses and Accreditations [Member]	'	'	'	'
Schedule Of Finite and Indefinite Lived Other Intangible Assets [Line Items]	'	'	'	'
Acquisition of intangible assets with a preliminary fair value	'	'	0.2	'
Cascade Behavioral Hospital [Member] | Certificates of Need [Member]	'	'	'	'
Schedule Of Finite and Indefinite Lived Other Intangible Assets [Line Items]	'	'	'	'
Acquisition of intangible assets with a preliminary fair value	'	'	0.3	'
Pacific Grove [Member] | Licenses and Accreditations [Member]	'	'	'	'
Schedule Of Finite and Indefinite Lived Other Intangible Assets [Line Items]	'	'	'	'
Acquisition of intangible assets with a preliminary fair value	'	'	0.2	'
Partnerships In Care [Member] | Licenses and Accreditations [Member]	'	'	'	'
Schedule Of Finite and Indefinite Lived Other Intangible Assets [Line Items]	'	'	'	'
Acquisition of intangible assets with a preliminary fair value	'	'	$0.70	'

Property_and_Equipment_Summary

Property and Equipment - Summary of Property and Equipment (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Property, Plant and Equipment [Line Items]	'	'
Property and equipment, gross	$1,076,615	$399,398
Less accumulated depreciation	-50,237	-29,289
Property and equipment, net	1,026,378	370,109
Land [Member]	'	'
Property, Plant and Equipment [Line Items]	'	'
Property and equipment, gross	132,114	58,947
Building and Improvements [Member]	'	'
Property, Plant and Equipment [Line Items]	'	'
Property and equipment, gross	829,078	259,523
Equipment [Member]	'	'
Property, Plant and Equipment [Line Items]	'	'
Property and equipment, gross	69,538	36,742
Construction in Progress [Member]	'	'
Property, Plant and Equipment [Line Items]	'	'
Property and equipment, gross	$45,885	$44,186

Discontinued_Operations_Additi

Discontinued Operations - Additional Information (Detail) (USD $)	1 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2012
Discontinued Operations and Disposal Groups [Abstract]	'
Loss on disposal of entity	$0.20

Discontinued_Operations_Summar

Discontinued Operations - Summary of Results from Discontinued Operations (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Discontinued Operations and Disposal Groups [Abstract]	'	'	'	'
Revenue	'	'	'	'
Loss from discontinued operations, net of income taxes	($51)	($182)	($20)	($572)

LongTerm_Debt_Components_of_Lo

Long-Term Debt - Components of Long Term Debt (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Nov. 01, 2011
In Thousands, unless otherwise specified
Line of Credit Facility [Line Items]	'	'	'
Aggregate senior note principal amount	$1,029,322	$617,136	$150,000
Less: current portion	-13,320	-15,195	'
Long-term debt	1,016,002	601,941	'
Senior Secured Term Loans [Member]	'	'	'
Line of Credit Facility [Line Items]	'	'	'
Aggregate senior note principal amount	294,375	292,500	'
Senior Secured Revolving Line of Credit [Member]	'	'	'
Line of Credit Facility [Line Items]	'	'	'
Aggregate senior note principal amount	164,000	53,500	'
12.875% Senior Notes Due 2018 [Member]	'	'	'
Line of Credit Facility [Line Items]	'	'	'
Aggregate senior note principal amount	96,366	96,216	'
6.125% Senior Notes Due 2021 [Member]	'	'	'
Line of Credit Facility [Line Items]	'	'	'
Aggregate senior note principal amount	150,000	150,000	'
5.125% Senior Notes due 2022 [Member]	'	'	'
Line of Credit Facility [Line Items]	'	'	'
Aggregate senior note principal amount	300,000	'	'
9.0% and 9.5% Revenue Bonds [Member]	'	'	'
Line of Credit Facility [Line Items]	'	'	'
Aggregate senior note principal amount	$24,581	$24,920	'

LongTerm_Debt_Components_of_Lo1

Long-Term Debt - Components of Long Term Debt (Parenthetical) (Detail)	9 Months Ended	12 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
12.875% Senior Notes Due 2018 [Member]	'	'
Line of Credit Facility [Line Items]	'	'
Debt instrument interest rate	12.88%	12.88%
Senior notes maturity date	'2018	'2018
6.125% Senior Notes Due 2021 [Member]	'	'
Line of Credit Facility [Line Items]	'	'
Debt instrument interest rate	6.13%	6.13%
Senior notes maturity date	'2021	'2021
5.125% Senior Notes due 2022 [Member]	'	'
Line of Credit Facility [Line Items]	'	'
Debt instrument interest rate	5.13%	5.13%
Senior notes maturity date	'2022	'2022
9.0% Revenue Bonds [Member]	'	'
Line of Credit Facility [Line Items]	'	'
Debt instrument interest rate	9.00%	9.00%
9.5% Revenue Bonds [Member]	'	'
Line of Credit Facility [Line Items]	'	'
Debt instrument interest rate	9.50%	9.50%

LongTerm_Debt_Additional_Infor

Long-Term Debt - Additional Information (Detail) (USD $)

9 Months Ended

9 Months Ended

9 Months Ended

9 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

0 Months Ended

9 Months Ended

9 Months Ended

Sep. 30, 2014

Sep. 30, 2013

Dec. 31, 2013

Nov. 01, 2011

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Nov. 11, 2012

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Nov. 11, 2012

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Nov. 11, 2012

Sep. 30, 2014

Feb. 13, 2014

Feb. 13, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Mar. 12, 2013

Sep. 30, 2014

Nov. 01, 2011

Mar. 12, 2013

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Jul. 01, 2014

Sep. 30, 2014

Jul. 01, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Sep. 30, 2014

Park Royal [Member]

Park Royal [Member]

9.0% and 9.5% Revenue Bonds [Member]

9.0% and 9.5% Revenue Bonds [Member]

9.0% and 9.5% Revenue Bonds [Member]

9.0% Revenue Bonds [Member]

9.0% Revenue Bonds [Member]

9.0% Revenue Bonds [Member]

9.0% Revenue Bonds [Member]

9.5% Revenue Bonds [Member]

9.5% Revenue Bonds [Member]

9.5% Revenue Bonds [Member]

9.5% Revenue Bonds [Member]

Base Rate Loans [Member]

Revolving Credit Facility [Member]

Term Loans [Member]

Eurodollar Rate Loans [Member]

Senior Secured Credit Facility [Member]

Senior Secured Credit Facility [Member]

Senior Secured Credit Facility [Member]

Senior Secured Credit Facility [Member]

12.875% Senior Notes Due 2018 [Member]

12.875% Senior Notes Due 2018 [Member]

12.875% Senior Notes Due 2018 [Member]

6.125% Senior Notes Due 2021 [Member]

6.125% Senior Notes Due 2021 [Member]

6.125% Senior Notes Due 2021 [Member]

6.125% Senior Notes Due 2021 [Member]

5.125% Senior Notes due 2022 [Member]

5.125% Senior Notes due 2022 [Member]

5.125% Senior Notes due 2022 [Member]

5.125% Senior Notes due 2022 [Member]

5.125% Senior Notes due 2022 [Member]

March 31, 2014 to December 31, 2014 [Member]

March 31, 2015 to December 31, 2015 [Member]

March 31, 2016 to December 31, 2016 [Member]

March 31, 2017 to December 31, 2017 [Member]

March 31, 2018 to December 31, 2018 [Member]

Amended and Restated Senior Credit Facility [Member]

Park Royal [Member]

Park Royal [Member]

Park Royal [Member]

Park Royal [Member]

Park Royal [Member]

Amended and Restated Credit Facility [Member]

Amended and Restated Credit Facility [Member]

January 1, 2013 through February 12, 2014 [Member]

February 13, 2014 through March 31, 2014 [Member]

London Interbank Offered Rate (LIBOR) [Member]

Prior to March 15, 2016 [Member]

Prior To March Fifteen Two Thousand Sixteen Thirty Five Percent Redemption [Member]

Prior To July One Two Thousand And Seventeen [Member]

Prior To July One Two Thousand And Seventeen Thirty Five Percent Redemption [Member]

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Senior secured credit facility initiation date

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1-Apr-11

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Amount under revolving line of credit

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$300,000,000

$300,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Increase in credit facility

150,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Restrictive covenants on investments, Description

'The Company may now invest, in any given fiscal year, up to five percent (5%) of its total assets in both joint ventures and foreign subsidiaries, respectively; provided that the aggregate amount of investments in both joint ventures and foreign subsidiaries, respectively, may not exceed ten percent (10%) of its total assets over the life of the Amended and Restated Senior Credit Facility; provided further that the aggregate amount of investments made in both joint ventures and foreign subsidiaries collectively pursuant to the foregoing may not exceed fifteen percent (15%) of its total assets.

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Amount available under revolving line of credit

135,600,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Term loan principal payments

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,900,000

3,800,000

5,600,000

7,500,000

9,400,000

'

Debt instrument maturity date

'

'

'

'

'

'

'

'

'

'

'

1-Dec-30

'

'

'

1-Dec-40

'

'

'

'

'

13-Feb-19

'

'

'

'

'

'

15-Mar-21

'

'

'

1-Jul-22

'

'

'

'

'

'

'

'

'

13-Feb-19

Interest on borrowings

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1.75%

'

'

2.75%

'

'

'

2.75%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt Instrument, Debt Default, Amount

20,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Basis spread on variable rate

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.50%

'

'

1.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Interest on undrawn loans

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.50%

0.40%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt instrument amount

'

'

'

'

'

'

'

'

'

'

'

'

7,500,000

'

'

'

15,500,000

'

'

'

'

'

'

'

'

'

'

150,000,000

150,000,000

'

'

'

'

'

300,000,000

'

'

'

'

'

'

'

'

Issue rate of senior notes

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

98.32%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Discount value on principal amount

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2,500,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt instrument interest rate

'

'

'

'

'

'

'

'

'

9.00%

9.00%

'

9.00%

9.50%

9.50%

'

9.50%

'

'

'

'

'

'

'

'

12.88%

12.88%

12.88%

6.13%

6.13%

'

'

'

5.13%

5.13%

'

'

'

'

'

'

'

'

Interest on the notes

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'Semi-annually, in arrears, on November 1 and May 1 of each year

'

'

'Payable semi-annually in arrears on March 15 and September 15 of each year.

'

'

'

'Payable semi-annually in arrears on January 1 and July 1 of each year, beginning on January 1, 2015.

'

'

'

'

'

'

'

'

'

Aggregate senior note principal amount

1,029,322,000

'

617,136,000

150,000,000

'

'

24,581,000

24,920,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt instrument, maximum redemption amount

'

9,350,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

52,500,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt instrument, redemption price percentage

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

112.88%

'

'

'

'

100.00%

106.13%

'

'

'

100.00%

105.13%

'

'

'

'

'

'

Redemption percentage of senior notes

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

35.00%

'

'

'

35.00%

'

'

'

35.00%

'

'

'

'

'

'

'

'

'

Debt extinguishment charge

'

-9,350,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

9,400,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Senior notes terms

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'The Company may redeem the 6.125% Senior Notes at its option, in whole or part, at any time prior to March 15, 2016, at a price equal to 100% of the principal amount of the 6.125% Senior Notes redeemed, plus accrued and unpaid interest to the redemption date and plus an applicable premium. The Company may redeem the 6.125% Senior Notes, in whole or in part, on or after March 15, 2016, at the redemption prices set forth in the indenture governing the 6.125% Senior Notes plus accrued and unpaid interest to the redemption date. At any time on or before March 15, 2016, the Company may elect to redeem up to 35% of the aggregate principal amount of the 6.125% Senior Notes at a redemption price equal to 106.125% of the principal amount thereof, plus accrued and unpaid interest to the redemption date, with the net proceeds of one or more equity offerings.

'

'

'

'The Company may redeem the 5.125% Senior Notes at its option, in whole or part, at any time prior to July 1, 2017, at a price equal to 100% of the principal amount of the 5.125% Senior Notes redeemed, plus accrued and unpaid interest to the redemption date and plus an applicable premium. The Company may redeem the 5.125% Senior Notes, in whole or in part, on or after July 1, 2017, at the redemption prices set forth in the indenture governing the 5.125% Senior Notes plus accrued and unpaid interest to the redemption date. At any time on or before July 1, 2017, the Company may elect to redeem up to 35% of the aggregate principal amount of the 5.125% Senior Notes at a redemption price equal to 105.125% of the principal amount thereof, plus accrued and unpaid interest to the redemption date, with the net proceeds of one or more equity offerings.

'

'

'

'

'

'

'

'

'

Assumed debt on acquisition

'

'

'

'

'

'

'

'

23,000,000

'

'

'

7,500,000

'

'

'

15,500,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Fair market value of the debt assumed

'

'

'

'

'

'

'

'

25,600,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt service reserve fund within other assets

'

'

'

'

2,300,000

2,300,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt instrument premium

'

'

'

'

'

'

'

'

$2,600,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Equity_Additional_Information_

Equity - Additional Information (Detail) (USD $)	0 Months Ended	9 Months Ended
	Jun. 17, 2014	Sep. 30, 2014	Dec. 31, 2013
Equity [Line Items]	'	'	'
Preferred stock, number of shares proposed to be issued	'	10,000,000	10,000,000
Common stock, number of shares proposed to be issued	'	90,000,000	90,000,000
Common stock voting rights	'	'One vote for each share	'
Common stock offered	8,881,794	59,182,578	50,070,980
Common stock offer price	$44	$0.01	$0.01
Underwriting discount amount	$15,600,000	'	'
Additional offering-related expenses	800,000	'	'
Net proceeds from sale of shares	'	374,431,000	'
Equity [Member]	'	'	'
Equity [Line Items]	'	'	'
Net proceeds from sale of shares	$374,300,000	'	'
Maximum [Member]	'	'	'
Equity [Line Items]	'	'	'
Preferred stock, number of shares proposed to be issued	'	10,000,000	'
Common stock, number of shares proposed to be issued	'	90,000,000	'

EquityBased_Compensation_Addit

Equity-Based Compensation - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Authorized common stock	4,700,000	'	4,700,000	'
Equity incentive plan available for future grant	'	'	2,664,749	'
Annual increments in employee grants	'	'	25.00%	'
Stock options, contractual term	'	'	'10 years	'
Equity-based compensation expense	$2,805,000	$1,331,000	$6,975,000	$3,744,000
Unrecognized compensation expense related to unvested options	'	'	33,600,000	'
Vesting period	'	'	'1 year 7 months 6 days	'
Warrants outstanding and exercisable	0	'	0	'
Deferred income tax benefit	'	'	4,645,000	10,545,000
Tax realized from stock options exercised	300,000	100,000	3,800,000	1,300,000
Stock Compensation Plan [Member]	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'
Deferred income tax benefit	$1,100,000	$600,000	$2,800,000	$1,500,000

EquityBased_Compensation_Stock

Equity-Based Compensation - Stock Option Activity (Detail) (USD $)	9 Months Ended	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013	Dec. 31, 2012
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'	'	'
Options outstanding, Beginning balance	798,809	555,097	'
Options granted	218,263	411,800	'
Options exercised	-182,888	-126,662	'
Options cancelled	-55,889	-41,426	'
Options outstanding, Ending balance	778,295	798,809	555,097
Options outstanding, Weighted Average Exercise Price, Beginning balance	$21.93	$13.13	'
Options exercisable, Ending balance	118,008	133,647	'
Options granted, Weighted Average Exercise Price	$49.68	$30.55	'
Options exercised, Weighted Average Exercise Price	$15.31	$9.36	'
Options cancelled, Weighted Average Exercise Price	$33.65	$23.50	'
Options outstanding, Weighted Average Exercise Price, Ending balance	$31.92	$21.93	$13.13
Options outstanding, Aggregate Intrinsic Value, Beginning balance	$10,700	$5,632	'
Options exercisable, Weighted Average Exercise Price, Ending balance	$29.04	$11.15	'
Options granted, Aggregate Intrinsic Value	97	2,059	'
Options granted, Weighted Average Remaining Contractual Term	'9 years 3 months 4 days	'9 years 3 months 18 days	'
Options exercised, Aggregate Intrinsic Value	4,994	2,803	'
Options outstanding, Weighted Average Remaining Contractual Term	'8 years 4 days	'8 years 2 months 12 days	'7 years 6 months 11 days
Options cancelled, Aggregate Intrinsic Value	'	'	'
Options exercisable, Weighted Average Remaining Contractual Term, Ending balance	'5 years 5 months 1 day	'4 years 9 months 22 days	'
Options outstanding, Aggregate Intrinsic Value, Ending balance	14,349	10,700	5,632
Options exercisable, Aggregate Intrinsic Value, Ending balance	$3,840	$3,472	'

EquityBased_Compensation_Restr

Equity-Based Compensation - Restricted Stock Activity (Detail) (Restricted Stock Award [Member], USD $)	9 Months Ended	12 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
Restricted Stock Award [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Unvested, Number of Shares/Units, Beginning balance	461,697	318,063
Granted, Number of Shares	456,384	290,845
Cancelled, Number of Shares	-68,769	-53,056
Vested, Number of Shares	-113,376	-94,155
Unvested, Number of Shares/Units, Ending balance	735,936	461,697
Unvested, Weighted Average Grant-Date Fair Value, Beginning balance	$24.96	$15.73
Granted, Weighted Average Grant-Date Fair Value	$48.89	$31.31
Cancelled, Weighted Average Grant-Date Fair Value	$36	$21.27
Vested, Weighted Average Grant-Date Fair Value	$23.84	$15.52
Unvested , Weighted Average Grant-Date Fair Value, Ending balance	$38.95	$24.96

EquityBased_Compensation_Restr1

Equity-Based Compensation - Restricted Stock Unit Activity (Detail) (Restricted Stock Units [Member], USD $)	9 Months Ended	12 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
Restricted Stock Units [Member]	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'
Unvested, Number of Shares/Units, Beginning balance	95,751	68,628
Granted, Number of Units	108,449	72,876
Cancelled, Number of Units	'	'
Vested, Number of Units	-79,087	-45,753
Unvested, Number of Shares/Units, Ending balance	125,113	95,751
Unvested, Weighted Average Grant-Date Fair Value, Beginning balance	$23.05	$16.11
Granted, Weighted Average Grant-Date Fair Value	$50.75	$29.39
Cancelled, Weighted Average Grant-Date Fair Value	'	'
Vested, Weighted Average Grant-Date Fair Value	$21.81	$16.11
Unvested , Weighted Average Grant-Date Fair Value, Ending balance	$38.73	$23.05

EquityBased_Compensation_Sched

Equity-Based Compensation - Schedule of Stock Options Valuation Assumptions (Detail) (USD $)	9 Months Ended	12 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'	'
Weighted average grant-date fair value of options	$17.80	$11.62
Risk-free interest rate	1.70%	1.00%
Expected volatility	36.00%	40.00%
Expected life (in years)	'5 years 6 months	'5 years 6 months

Income_Taxes_Additional_Inform

Income Taxes - Additional Information (Detail)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Income Tax Disclosure [Abstract]	'	'	'	'
Effective tax rates	23.20%	34.70%	33.30%	37.40%

Derivatives_Additional_Informa

Derivatives - Additional Information (Detail) (USD $)	3 Months Ended	9 Months Ended
In Millions, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2014	Jun. 30, 2014
			Contract
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'	'	'
Number of foreign currency forward contracts	'	'	2
Gain associated with changes in fair value of the foreign currency forward contracts	$1.50	$15.30	'

Fair_Value_Measurements_Carryi

Fair Value Measurements - Carrying Amounts and Fair Values of Company's Amended and Restated Senior Credit Facilities and Contingent Consideration Liability (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Nov. 01, 2011
In Thousands, unless otherwise specified
Disclosures Regarding Financial Instruments [Line Items]	'	'	'
Senior credit facility, carrying amount	$1,029,322	$617,136	$150,000
Business acquisition contingent consideration, carrying amount	3,467	6,500	'
Business acquisition contingent consideration, at fair value	3,467	6,500	'
Amended and Restated Senior Credit Facility [Member]	'	'	'
Disclosures Regarding Financial Instruments [Line Items]	'	'	'
Senior credit facility, carrying amount	458,375	346,000	'
Senior credit facility, fair value	458,375	346,000	'
12.875% Senior Notes Due 2018 [Member]	'	'	'
Disclosures Regarding Financial Instruments [Line Items]	'	'	'
Senior credit facility, carrying amount	96,366	96,216	'
Senior credit facility, fair value	111,881	118,706	'
6.125% Senior Notes Due 2021 [Member]	'	'	'
Disclosures Regarding Financial Instruments [Line Items]	'	'	'
Senior credit facility, carrying amount	150,000	150,000	'
Senior credit facility, fair value	152,625	155,625	'
5.125% Senior Notes due 2022 [Member]	'	'	'
Disclosures Regarding Financial Instruments [Line Items]	'	'	'
Senior credit facility, carrying amount	300,000	'	'
Senior credit facility, fair value	290,250	'	'
9.0% and 9.5% Revenue Bonds [Member]	'	'	'
Disclosures Regarding Financial Instruments [Line Items]	'	'	'
Senior credit facility, carrying amount	24,581	24,920	'
Senior credit facility, fair value	$24,581	$24,920	'

Fair_Value_Measurements_Additi

Fair Value Measurements - Additional Information (Detail) (USD $)

9 Months Ended

9 Months Ended

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Sep. 30, 2014

Sep. 03, 2014

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Sep. 30, 2014

Dec. 31, 2013

Nov. 11, 2012

Sep. 30, 2014

Dec. 31, 2013

Nov. 11, 2012

Park Royal [Member]

McCallum [Member]

McCallum [Member]

12.875% Senior Notes Due 2018 [Member]

12.875% Senior Notes Due 2018 [Member]

6.125% Senior Notes Due 2021 [Member]

6.125% Senior Notes Due 2021 [Member]

5.125% Senior Notes due 2022 [Member]

5.125% Senior Notes due 2022 [Member]

9.0% Revenue Bonds [Member]

9.0% Revenue Bonds [Member]

9.0% Revenue Bonds [Member]

9.5% Revenue Bonds [Member]

9.5% Revenue Bonds [Member]

9.5% Revenue Bonds [Member]

Park Royal [Member]

Park Royal [Member]

Disclosures Regarding Financial Instruments [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt instrument interest rate

'

'

'

'

'

12.88%

12.88%

6.13%

6.13%

5.13%

5.13%

9.00%

9.00%

9.00%

9.50%

9.50%

9.50%

Increase in fair value of contingent consideration liability

$500,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Contingent consideration, Paid

5,000,000

'

5,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Contingent consideration liability

3,467,000

6,500,000

7,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Cash payments for earn-out agreement

'

'

'

$6,000,000

$6,000,000

'

'

'

'

'

'

'

'

'

'

'

'

Subsequent_Events_Additional_I

Subsequent Events - Additional Information (Detail) (USD $)	Sep. 30, 2014	Jun. 17, 2014	Dec. 31, 2013	Sep. 30, 2014	Oct. 29, 2014	Oct. 29, 2014
In Millions, except Share data, unless otherwise specified	State			CRC Health Group, Inc [Member]	Subsequent Event [Member]	Subsequent Event [Member]
				Facilities
				State
Subsequent Event [Line Items]	'	'	'	'	'	'
Number of facilities operated by CRC	'	'	'	120	'	'
Number of states covered under treatment services CRC	24	'	'	30	'	'
Common stock, shares issued	59,182,578	8,881,794	50,070,980	'	'	6,300,000
Common stock, par value per share	$0.01	$44	$0.01	'	'	$0.01
Aggregate consideration to be paid under merger agreement	'	'	'	'	$1,175	'

Segment_Information_Additional

Segment Information - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2014
	Facility
	Beds
Segment Reporting Information [Line Items]	'
Number of states covered under inpatient psychiatric facilities	24
Behavioral Healthcare Facilities [Member]	'
Segment Reporting Information [Line Items]	'
Number of inpatient psychiatric facilities	76
Number of licensed beds	5,800
Behavioral Healthcare Facilities [Member] | U.S. Facilities [Member]	'
Segment Reporting Information [Line Items]	'
Number of inpatient psychiatric facilities	53
Number of states covered under inpatient psychiatric facilities	24
Behavioral Healthcare Facilities [Member] | U.S. Facilities [Member] | Minimum [Member]	'
Segment Reporting Information [Line Items]	'
Number of licensed beds	4,500
Behavioral Healthcare Facilities [Member] | U.K. Facilities [Member]	'
Segment Reporting Information [Line Items]	'
Number of inpatient psychiatric facilities	23
Behavioral Healthcare Facilities [Member] | U.K. Facilities [Member] | Minimum [Member]	'
Segment Reporting Information [Line Items]	'
Number of licensed beds	1,200

Segment_Information_Summary_of

Segment Information - Summary of Financial Information by Operating Segment (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Segment Reporting Information [Line Items]	'	'	'	'
Revenue	$294,479	$184,702	$709,700	$523,409
Segment EBITDA	65,066	38,481	149,062	106,137
Equity-based compensation expense	-2,805	-1,331	-6,975	-3,744
Gain on foreign currency derivatives	1,527	'	15,262	'
Debt extinguishment costs	'	'	'	-9,350
Transaction-related expenses	-6,239	-984	-10,834	-3,813
Interest expense, net	-14,068	-9,465	-33,505	-27,672
Depreciation and amortization	-10,325	-4,414	-21,696	-12,248
Income from continuing operations before income taxes	33,156	22,287	91,314	49,310
U.S. Facilities [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Revenue	217,427	184,071	630,825	521,368
Segment EBITDA	53,814	45,115	154,377	126,017
Equity-based compensation expense	'	'	'	'
Gain on foreign currency derivatives	'	'	'	'
Debt extinguishment costs	'	'	'	'
Transaction-related expenses	'	'	'	'
Interest expense, net	-517	-926	-1,665	-2,114
Depreciation and amortization	-5,475	-3,727	-15,381	-10,375
Income from continuing operations before income taxes	47,822	40,462	137,331	113,528
U.K. Facilities [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Revenue	76,026	'	76,026	'
Segment EBITDA	20,253	'	20,253	'
Equity-based compensation expense	'	'	'	'
Gain on foreign currency derivatives	'	'	'	'
Debt extinguishment costs	'	'	'	'
Transaction-related expenses	-811	'	-811	'
Interest expense, net	-9,451	'	-9,451	'
Depreciation and amortization	-4,094	'	-4,094	'
Income from continuing operations before income taxes	5,897	'	5,897	'
Corporate and Other [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Revenue	1,026	631	2,849	2,041
Segment EBITDA	-9,001	-6,634	-25,568	-19,880
Equity-based compensation expense	-2,805	-1,331	-6,975	-3,744
Gain on foreign currency derivatives	1,527	'	15,262	'
Debt extinguishment costs	'	'	'	-9,350
Transaction-related expenses	-5,428	-984	-10,023	-3,813
Interest expense, net	-4,100	-8,539	-22,389	-25,558
Depreciation and amortization	-756	-687	-2,221	-1,873
Income from continuing operations before income taxes	($20,563)	($18,175)	($51,914)	($64,218)

Segment_Information_Summary_of1

Segment Information - Summary of Financial Information by Operating Segment, Goodwill (Detail) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014
Goodwill:	'
Beginning balance	$661,549
Increase from 2014 acquisitions	148,883
Foreign currency translation loss	-6,199
Other	414
Ending balance	804,647
U.S. Facilities [Member]	'
Goodwill:	'
Beginning balance	661,549
Increase from 2014 acquisitions	31,586
Foreign currency translation loss	'
Other	414
Ending balance	693,549
U.K. Facilities [Member]	'
Goodwill:	'
Beginning balance	'
Increase from 2014 acquisitions	117,297
Foreign currency translation loss	-6,199
Other	'
Ending balance	111,098
Corporate and Other [Member]	'
Goodwill:	'
Beginning balance	'
Increase from 2014 acquisitions	'
Foreign currency translation loss	'
Other	'
Ending balance	'

Segment_Information_Summary_of2

Segment Information - Summary of Financial Information by Operating Segment, Assets (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Assets:	'	'
Assets	$2,140,468	$1,224,659
U.S. Facilities [Member]	'	'
Assets:	'	'
Assets	1,291,961	1,155,813
U.K. Facilities [Member]	'	'
Assets:	'	'
Assets	743,288	'
Corporate and Other [Member]	'	'
Assets:	'	'
Assets	$105,219	$68,846

Partnerships_in_Care_Pension_P2

Partnerships in Care Pension Plan - Additional Information (Detail) (USD $)	Sep. 30, 2014	Jul. 01, 2014
Defined Benefit Plan, Funded Status of Plan [Abstract]	'	'
Pension liability under defined benefit pension plan	$5,775,000	$6,302,000
Fair value of plan assets	$62,800,000	'

Partnerships_in_Care_Pension_P3

Partnerships in Care Pension Plan - Summary of Changes in Partnerships in Care Pension Plan Pension Liability (Detail) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014
Defined Benefit Plan, Funded Status of Plan [Abstract]	'
Pension liability at July 1, 2014	$6,302
Employer contributions	-1,097
Net pension benefit expense	897
Foreign currency translation loss	-327
Pension liability at September 30, 2014	$5,775

Financial_Information_for_the_2

Financial Information for the Company and Its Subsidiaries - Additional Information (Detail)	Sep. 30, 2014	Mar. 12, 2013	Nov. 01, 2011	Sep. 30, 2014	Mar. 12, 2013	Sep. 30, 2014	Jul. 01, 2014
	12.875% Senior Notes Due 2018 [Member]	12.875% Senior Notes Due 2018 [Member]	12.875% Senior Notes Due 2018 [Member]	6.125% Senior Notes Due 2021 [Member]	6.125% Senior Notes Due 2021 [Member]	5.125% Senior Notes due 2022 [Member]	5.125% Senior Notes due 2022 [Member]
Line of Credit Facility [Line Items]	'	'	'	'	'	'	'
Debt instrument interest rate	12.88%	12.88%	12.88%	6.13%	6.13%	5.13%	5.13%

Financial_Information_for_the_3

Financial Information for the Company and Its Subsidiaries - Summary of Condensed Consolidating Balance Sheets (Detail) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Current assets:	'	'	'	'
Cash and cash equivalents	$42,179	$4,569	$4,034	$49,399
Accounts receivable, net	130,253	95,885	'	'
Deferred tax assets	19,782	15,703	'	'
Other current assets	37,626	28,969	'	'
Total current assets	229,840	145,126	'	'
Property and equipment, net	1,026,378	370,109	'	'
Goodwill	804,647	661,549	'	'
Intangible assets, net	21,621	20,568	'	'
Deferred tax assets - noncurrent	15,933	'	'	'
Investment in subsidiaries	0	0	'	'
Other assets	42,049	27,307	'	'
Total assets	2,140,468	1,224,659	'	'
Current liabilities:	'	'	'	'
Current portion of long-term debt	13,320	15,195	'	'
Accounts payable	43,260	36,026	'	'
Accrued salaries and benefits	56,213	37,721	'	'
Other accrued liabilities	29,747	25,748	'	'
Total current liabilities	142,540	114,690	'	'
Long-term debt	1,016,002	601,941	'	'
Deferred tax liabilities - noncurrent	64,771	7,971	'	'
Other liabilities	30,579	19,347	'	'
Total liabilities	1,253,892	743,949	'	'
Total equity	886,576	480,710	'	'
Total liabilities and equity	2,140,468	1,224,659	'	'
Parent [Member]	'	'	'	'
Current assets:	'	'	'	'
Cash and cash equivalents	0	0	0	0
Accounts receivable, net	0	0	'	'
Deferred tax assets	0	0	'	'
Other current assets	0	0	'	'
Total current assets	0	0	'	'
Property and equipment, net	0	0	'	'
Goodwill	0	0	'	'
Intangible assets, net	0	0	'	'
Deferred tax assets - noncurrent	3,347	'	'	'
Investment in subsidiaries	1,693,275	1,034,160	'	'
Other assets	204,562	46,236	'	'
Total assets	1,901,184	1,080,396	'	'
Current liabilities:	'	'	'	'
Current portion of long-term debt	13,125	15,000	'	'
Accounts payable	0	0	'	'
Accrued salaries and benefits	0	0	'	'
Other accrued liabilities	9,867	4,876	'	'
Total current liabilities	22,992	19,876	'	'
Long-term debt	991,616	577,216	'	'
Deferred tax liabilities - noncurrent	0	2,594	'	'
Other liabilities	0	0	'	'
Total liabilities	1,014,608	599,686	'	'
Total equity	886,576	480,710	'	'
Total liabilities and equity	1,901,184	1,080,396	'	'
Combined Subsidiary Guarantors [Member]	'	'	'	'
Current assets:	'	'	'	'
Cash and cash equivalents	10,421	0	0	49,307
Accounts receivable, net	111,706	86,597	'	'
Deferred tax assets	18,894	15,284	'	'
Other current assets	31,772	27,886	'	'
Total current assets	172,793	129,767	'	'
Property and equipment, net	412,958	340,175	'	'
Goodwill	596,214	564,539	'	'
Intangible assets, net	19,015	18,578	'	'
Deferred tax assets - noncurrent	0	'	'	'
Investment in subsidiaries	0	0	'	'
Other assets	17,926	11,675	'	'
Total assets	1,218,906	1,064,734	'	'
Current liabilities:	'	'	'	'
Current portion of long-term debt	0	0	'	'
Accounts payable	34,774	36,289	'	'
Accrued salaries and benefits	42,515	36,027	'	'
Other accrued liabilities	12,620	19,982	'	'
Total current liabilities	89,909	92,298	'	'
Long-term debt	0	0	'	'
Deferred tax liabilities - noncurrent	19,512	11,138	'	'
Other liabilities	24,361	19,347	'	'
Total liabilities	133,782	122,783	'	'
Total equity	1,085,124	941,951	'	'
Total liabilities and equity	1,218,906	1,064,734	'	'
Combined Non-Guarantors [Member]	'	'	'	'
Current assets:	'	'	'	'
Cash and cash equivalents	31,758	6,494	5,350	92
Accounts receivable, net	18,547	9,288	'	'
Deferred tax assets	888	419	'	'
Other current assets	5,854	1,083	'	'
Total current assets	57,047	17,284	'	'
Property and equipment, net	613,420	29,934	'	'
Goodwill	208,433	97,010	'	'
Intangible assets, net	2,606	1,990	'	'
Deferred tax assets - noncurrent	16,916	'	'	'
Investment in subsidiaries	0	0	'	'
Other assets	2,321	8,082	'	'
Total assets	900,743	154,300	'	'
Current liabilities:	'	'	'	'
Current portion of long-term debt	195	195	'	'
Accounts payable	8,486	1,662	'	'
Accrued salaries and benefits	13,698	1,694	'	'
Other accrued liabilities	7,260	890	'	'
Total current liabilities	29,639	4,441	'	'
Long-term debt	207,146	57,650	'	'
Deferred tax liabilities - noncurrent	49,589	0	'	'
Other liabilities	6,218	0	'	'
Total liabilities	292,592	62,091	'	'
Total equity	608,151	92,209	'	'
Total liabilities and equity	900,743	154,300	'	'
Consolidating Adjustments [Member]	'	'	'	'
Current assets:	'	'	'	'
Cash and cash equivalents	0	-1,925	-1,316	0
Accounts receivable, net	0	0	'	'
Deferred tax assets	0	0	'	'
Other current assets	0	0	'	'
Total current assets	0	-1,925	'	'
Property and equipment, net	0	0	'	'
Goodwill	0	0	'	'
Intangible assets, net	0	0	'	'
Deferred tax assets - noncurrent	-4,330	'	'	'
Investment in subsidiaries	-1,693,275	-1,034,160	'	'
Other assets	-182,760	-38,686	'	'
Total assets	-1,880,365	-1,074,771	'	'
Current liabilities:	'	'	'	'
Current portion of long-term debt	0	0	'	'
Accounts payable	0	-1,925	'	'
Accrued salaries and benefits	0	0	'	'
Other accrued liabilities	0	0	'	'
Total current liabilities	0	-1,925	'	'
Long-term debt	-182,760	-32,925	'	'
Deferred tax liabilities - noncurrent	-4,330	-5,761	'	'
Other liabilities	0	0	'	'
Total liabilities	-187,090	-40,611	'	'
Total equity	-1,693,275	-1,034,160	'	'
Total liabilities and equity	($1,880,365)	($1,074,771)	'	'

Financial_Information_for_the_4

Financial Information for the Company and Its Subsidiaries - Summary of Condensed Consolidating Statement of Statement of Comprehensive Income (Detail) (USD $)	3 Months Ended		9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Revenue before provision for doubtful accounts	$303,001	$190,574	$729,784	$539,230
Provision for doubtful accounts	-8,522	-5,872	-20,084	-15,821
Revenue	294,479	184,702	709,700	523,409
Salaries, wages and benefits	168,632	103,789	408,680	298,904
Professional fees	14,878	8,956	36,151	27,294
Supplies	14,062	9,806	34,722	28,017
Rents and leases	3,214	2,656	8,872	7,377
Other operating expenses	31,432	22,345	79,188	59,424
Depreciation and amortization	10,325	4,414	21,696	12,248
Interest expense, net	14,068	9,465	33,505	27,672
Gain on foreign currency derivatives	-1,527	'	-15,262	'
Debt extinguishment costs	'	'	'	9,350
Transaction-related expenses	6,239	984	10,834	3,813
Total expenses	261,323	162,415	618,386	474,099
Income from continuing operations before income taxes	33,156	22,287	91,314	49,310
Equity in earnings of subsidiaries	0	0	0	0
Provision for income taxes	7,703	7,741	30,383	18,439
Income (loss) from continuing operations	25,453	14,546	60,931	30,871
Loss from discontinued operations, net of income taxes	-51	-182	-20	-572
Net income (loss)	25,402	14,364	60,911	30,299
Other comprehensive loss:	'	'	'	'
Foreign currency translation loss	-36,857	'	-36,857	'
Other comprehensive loss	-36,857	'	-36,857	'
Comprehensive (loss) income	-11,455	14,364	24,054	30,299
Comprehensive (loss) income	-11,455	14,364	24,054	30,299
Parent [Member]	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Revenue before provision for doubtful accounts	0	0	0	0
Provision for doubtful accounts	0	0	0	0
Revenue	0	0	0	0
Salaries, wages and benefits	2,805	1,331	6,975	3,744
Professional fees	0	0	0	0
Supplies	0	0	0	0
Rents and leases	0	0	0	0
Other operating expenses	0	0	0	0
Depreciation and amortization	0	0	0	0
Interest expense, net	4,096	8,542	22,409	25,570
Gain on foreign currency derivatives	-1,527	'	-15,262	'
Debt extinguishment costs	'	'	'	9,350
Transaction-related expenses	0	0	0	0
Total expenses	5,374	9,873	14,122	38,664
Income from continuing operations before income taxes	-5,374	-9,873	-14,122	-38,664
Equity in earnings of subsidiaries	28,607	21,087	69,446	54,340
Provision for income taxes	-2,169	-3,150	-5,587	-14,623
Income (loss) from continuing operations	25,402	14,364	60,911	30,299
Loss from discontinued operations, net of income taxes	0	0	0	0
Net income (loss)	25,402	14,364	60,911	30,299
Other comprehensive loss:	'	'	'	'
Foreign currency translation loss	0	'	0	'
Other comprehensive loss	0	'	0	'
Comprehensive (loss) income	25,402	14,364	60,911	30,299
Comprehensive (loss) income	25,402	14,364	60,911	30,299
Combined Subsidiary Guarantors [Member]	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Revenue before provision for doubtful accounts	212,376	179,560	612,801	516,467
Provision for doubtful accounts	-7,444	-5,660	-17,908	-14,932
Revenue	204,932	173,900	594,893	501,535
Salaries, wages and benefits	117,261	98,166	342,890	285,760
Professional fees	9,816	7,954	28,760	25,447
Supplies	10,784	9,170	30,137	26,718
Rents and leases	2,419	2,394	7,527	6,872
Other operating expenses	18,979	19,896	62,579	53,922
Depreciation and amortization	5,874	4,072	16,540	11,379
Interest expense, net	6,439	0	6,439	0
Gain on foreign currency derivatives	0	'	0	'
Debt extinguishment costs	'	'	'	0
Transaction-related expenses	5,428	984	10,023	3,813
Total expenses	177,000	142,636	504,895	413,911
Income from continuing operations before income taxes	27,932	31,264	89,998	87,624
Equity in earnings of subsidiaries	0	0	0	0
Provision for income taxes	12,517	10,680	36,766	33,143
Income (loss) from continuing operations	15,415	20,584	53,232	54,481
Loss from discontinued operations, net of income taxes	-51	-182	-20	-572
Net income (loss)	15,364	20,402	53,212	53,909
Other comprehensive loss:	'	'	'	'
Foreign currency translation loss	0	'	0	'
Other comprehensive loss	0	'	0	'
Comprehensive (loss) income	15,364	20,402	53,212	53,909
Comprehensive (loss) income	15,364	20,402	53,212	53,909
Combined Non-Guarantors [Member]	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Revenue before provision for doubtful accounts	90,625	11,014	116,983	22,763
Provision for doubtful accounts	-1,078	-212	-2,176	-889
Revenue	89,547	10,802	114,807	21,874
Salaries, wages and benefits	48,566	4,292	58,815	9,400
Professional fees	5,062	1,002	7,391	1,847
Supplies	3,278	636	4,585	1,299
Rents and leases	795	262	1,345	505
Other operating expenses	12,453	2,449	16,609	5,502
Depreciation and amortization	4,451	342	5,156	869
Interest expense, net	3,533	923	4,657	2,102
Gain on foreign currency derivatives	0	'	0	'
Debt extinguishment costs	'	'	'	0
Transaction-related expenses	811	0	811	0
Total expenses	78,949	9,906	99,369	21,524
Income from continuing operations before income taxes	10,598	896	15,438	350
Equity in earnings of subsidiaries	0	0	0	0
Provision for income taxes	-2,645	211	-796	-81
Income (loss) from continuing operations	13,243	685	16,234	431
Loss from discontinued operations, net of income taxes	0	0	0	0
Net income (loss)	13,243	685	16,234	431
Other comprehensive loss:	'	'	'	'
Foreign currency translation loss	-36,857	'	-36,857	'
Other comprehensive loss	-36,857	'	-36,857	'
Comprehensive (loss) income	-23,614	685	-20,623	431
Comprehensive (loss) income	-23,614	685	-20,623	431
Consolidating Adjustments [Member]	'	'	'	'
Condensed Financial Statements, Captions [Line Items]	'	'	'	'
Revenue before provision for doubtful accounts	0	0	0	0
Provision for doubtful accounts	0	0	0	0
Revenue	0	0	0	0
Salaries, wages and benefits	0	0	0	0
Professional fees	0	0	0	0
Supplies	0	0	0	0
Rents and leases	0	0	0	0
Other operating expenses	0	0	0	0
Depreciation and amortization	0	0	0	0
Interest expense, net	0	0	0	0
Gain on foreign currency derivatives	0	'	0	'
Debt extinguishment costs	'	'	'	0
Transaction-related expenses	0	0	0	0
Total expenses	0	0	0	0
Income from continuing operations before income taxes	0	0	0	0
Equity in earnings of subsidiaries	-28,607	-21,087	-69,446	-54,340
Provision for income taxes	0	0	'	0
Income (loss) from continuing operations	-28,607	-21,087	-69,446	-54,340
Loss from discontinued operations, net of income taxes	0	0	0	0
Net income (loss)	-28,607	-21,087	-69,446	-54,340
Other comprehensive loss:	'	'	'	'
Foreign currency translation loss	0	'	0	'
Other comprehensive loss	0	'	0	'
Comprehensive (loss) income	-28,607	-21,087	-69,446	-54,340
Comprehensive (loss) income	($28,607)	($21,087)	($69,446)	($54,340)

Financial_Information_for_the_5

Financial Information for the Company and Its Subsidiaries - Summary of Condensed Consolidating Statement of Cash Flows (Detail) (USD $)	9 Months Ended
In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Operating activities:	'	'
Net income (loss)	$60,911	$30,299
Adjustments to reconcile net income (loss) to net cash (used in) provided by continuing operating activities:	'	'
Equity in earnings of subsidiaries	0	0
Depreciation and amortization	21,696	12,248
Amortization of debt issuance costs	2,229	1,686
Equity-based compensation expense	6,975	3,744
Deferred income tax expense	4,645	10,545
Loss from discontinued operations, net of taxes	20	572
Gain on foreign currency derivatives	-15,262	'
Debt extinguishment costs	'	9,350
Other	163	16
Change in operating assets and liabilities, net of effect of acquisitions:	'	'
Accounts receivable, net	-25,395	-18,378
Other current assets	1,322	-5,657
Other assets	-2,086	-1,676
Accounts payable and other accrued liabilities	1,078	2,596
Accrued salaries and benefits	8,972	-2,114
Other liabilities	3,805	3,538
Net cash (used in) provided by continuing operating activities	69,073	46,769
Net cash used in discontinued operating activities	-27	-541
Net cash (used in) provided by operating activities	69,046	46,228
Investing activities:	'	'
Cash paid for acquisitions, net of cash acquired	-722,797	-135,605
Cash paid for capital expenditures	-70,680	-50,678
Cash paid for real estate acquisitions	-22,247	-4,676
Settlement of foreign currency derivatives	15,262	'
Other	-733	-1,088
Net cash used in investing activities	-801,195	-192,047
Financing activities:	'	'
Borrowings on long-term debt	307,500	150,000
Borrowings on revolving credit facility	230,500	27,500
Principal payments on revolving credit facility	-120,000	-8,000
Principal payments on long-term debt	-5,625	-5,625
Repayment of long-term debt	'	-52,500
Payment of debt issuance costs	-10,909	-4,307
Issuance of common stock, net	374,431	'
Payment of premium on note redemption	'	-6,759
Common stock withheld for minimum statutory taxes, net	-3,477	-1,120
Excess tax benefit from equity awards	3,779	1,265
Cash paid for contingent consideration	-5,000	'
Cash (used in) provided by intercompany activity	0	0
Net cash provided by (used in) financing activities	771,199	100,454
Effect of exchange rate changes on cash	-1,440	'
Net increase (decrease) in cash and cash equivalents	37,610	-45,365
Cash and cash equivalents at beginning of the period	4,569	49,399
Cash and cash equivalents at end of the period	42,179	4,034
Parent [Member]	'	'
Operating activities:	'	'
Net income (loss)	60,911	30,299
Adjustments to reconcile net income (loss) to net cash (used in) provided by continuing operating activities:	'	'
Equity in earnings of subsidiaries	-69,446	-54,340
Depreciation and amortization	0	0
Amortization of debt issuance costs	1,891	1,686
Equity-based compensation expense	6,975	3,744
Deferred income tax expense	-754	-70
Loss from discontinued operations, net of taxes	0	0
Gain on foreign currency derivatives	-15,262	'
Debt extinguishment costs	'	9,350
Other	0	0
Change in operating assets and liabilities, net of effect of acquisitions:	'	'
Accounts receivable, net	0	0
Other current assets	0	0
Other assets	165	0
Accounts payable and other accrued liabilities	0	0
Accrued salaries and benefits	0	0
Other liabilities	0	0
Net cash (used in) provided by continuing operating activities	-15,520	-9,331
Net cash used in discontinued operating activities	0	0
Net cash (used in) provided by operating activities	-15,520	-9,331
Investing activities:	'	'
Cash paid for acquisitions, net of cash acquired	0	0
Cash paid for capital expenditures	0	0
Cash paid for real estate acquisitions	0	0
Settlement of foreign currency derivatives	15,262	'
Other	0	0
Net cash used in investing activities	15,262	0
Financing activities:	'	'
Borrowings on long-term debt	307,500	150,000
Borrowings on revolving credit facility	230,500	27,500
Principal payments on revolving credit facility	-120,000	-8,000
Principal payments on long-term debt	-5,625	-5,625
Repayment of long-term debt	'	-52,500
Payment of debt issuance costs	-10,909	-4,307
Issuance of common stock, net	374,431	'
Payment of premium on note redemption	'	-6,759
Common stock withheld for minimum statutory taxes, net	-3,477	-1,120
Excess tax benefit from equity awards	3,779	1,265
Cash paid for contingent consideration	0	'
Cash (used in) provided by intercompany activity	-775,941	-91,123
Net cash provided by (used in) financing activities	258	9,331
Effect of exchange rate changes on cash	0	'
Net increase (decrease) in cash and cash equivalents	0	0
Cash and cash equivalents at beginning of the period	0	0
Cash and cash equivalents at end of the period	0	0
Combined Subsidiary Guarantors [Member]	'	'
Operating activities:	'	'
Net income (loss)	53,212	53,909
Adjustments to reconcile net income (loss) to net cash (used in) provided by continuing operating activities:	'	'
Equity in earnings of subsidiaries	0	0
Depreciation and amortization	16,540	11,379
Amortization of debt issuance costs	0	0
Equity-based compensation expense	0	0
Deferred income tax expense	3,218	10,797
Loss from discontinued operations, net of taxes	20	572
Gain on foreign currency derivatives	0	'
Debt extinguishment costs	'	0
Other	134	16
Change in operating assets and liabilities, net of effect of acquisitions:	'	'
Accounts receivable, net	-23,347	-18,920
Other current assets	1,067	-5,638
Other assets	-2,086	-1,676
Accounts payable and other accrued liabilities	-2,752	2,763
Accrued salaries and benefits	6,546	-2,307
Other liabilities	3,549	7,693
Net cash (used in) provided by continuing operating activities	56,101	58,588
Net cash used in discontinued operating activities	-27	-541
Net cash (used in) provided by operating activities	56,074	58,047
Investing activities:	'	'
Cash paid for acquisitions, net of cash acquired	-722,797	-135,605
Cash paid for capital expenditures	-60,223	-50,378
Cash paid for real estate acquisitions	-22,247	-4,676
Settlement of foreign currency derivatives	0	'
Other	-733	-1,088
Net cash used in investing activities	-806,000	-191,747
Financing activities:	'	'
Borrowings on long-term debt	0	0
Borrowings on revolving credit facility	0	0
Principal payments on revolving credit facility	0	0
Principal payments on long-term debt	0	0
Repayment of long-term debt	'	0
Payment of debt issuance costs	0	0
Issuance of common stock, net	0	'
Payment of premium on note redemption	'	0
Common stock withheld for minimum statutory taxes, net	0	0
Excess tax benefit from equity awards	0	0
Cash paid for contingent consideration	-5,000	'
Cash (used in) provided by intercompany activity	765,347	84,393
Net cash provided by (used in) financing activities	760,347	84,393
Effect of exchange rate changes on cash	0	'
Net increase (decrease) in cash and cash equivalents	10,421	-49,307
Cash and cash equivalents at beginning of the period	0	49,307
Cash and cash equivalents at end of the period	10,421	0
Combined Non-Guarantors [Member]	'	'
Operating activities:	'	'
Net income (loss)	16,234	431
Adjustments to reconcile net income (loss) to net cash (used in) provided by continuing operating activities:	'	'
Equity in earnings of subsidiaries	0	0
Depreciation and amortization	5,156	869
Amortization of debt issuance costs	338	0
Equity-based compensation expense	0	0
Deferred income tax expense	2,181	-182
Loss from discontinued operations, net of taxes	0	0
Gain on foreign currency derivatives	0	'
Debt extinguishment costs	'	0
Other	29	0
Change in operating assets and liabilities, net of effect of acquisitions:	'	'
Accounts receivable, net	-2,048	542
Other current assets	255	-19
Other assets	0	0
Accounts payable and other accrued liabilities	3,830	-167
Accrued salaries and benefits	2,426	193
Other liabilities	256	-4,155
Net cash (used in) provided by continuing operating activities	28,657	-2,488
Net cash used in discontinued operating activities	0	0
Net cash (used in) provided by operating activities	28,657	-2,488
Investing activities:	'	'
Cash paid for acquisitions, net of cash acquired	0	0
Cash paid for capital expenditures	-10,457	-300
Cash paid for real estate acquisitions	0	0
Settlement of foreign currency derivatives	0	'
Other	0	0
Net cash used in investing activities	-10,457	-300
Financing activities:	'	'
Borrowings on long-term debt	0	0
Borrowings on revolving credit facility	0	0
Principal payments on revolving credit facility	0	0
Principal payments on long-term debt	-165	0
Repayment of long-term debt	'	0
Payment of debt issuance costs	0	0
Issuance of common stock, net	0	'
Payment of premium on note redemption	'	0
Common stock withheld for minimum statutory taxes, net	0	0
Excess tax benefit from equity awards	0	0
Cash paid for contingent consideration	0	'
Cash (used in) provided by intercompany activity	8,669	8,046
Net cash provided by (used in) financing activities	8,504	8,046
Effect of exchange rate changes on cash	-1,440	'
Net increase (decrease) in cash and cash equivalents	25,264	5,258
Cash and cash equivalents at beginning of the period	6,494	92
Cash and cash equivalents at end of the period	31,758	5,350
Consolidating Adjustments [Member]	'	'
Operating activities:	'	'
Net income (loss)	-69,446	-54,340
Adjustments to reconcile net income (loss) to net cash (used in) provided by continuing operating activities:	'	'
Equity in earnings of subsidiaries	69,446	54,340
Depreciation and amortization	0	0
Amortization of debt issuance costs	0	0
Equity-based compensation expense	0	0
Deferred income tax expense	0	0
Loss from discontinued operations, net of taxes	0	0
Gain on foreign currency derivatives	0	'
Debt extinguishment costs	'	0
Other	0	0
Change in operating assets and liabilities, net of effect of acquisitions:	'	'
Accounts receivable, net	0	0
Other current assets	0	0
Other assets	-165	0
Accounts payable and other accrued liabilities	0	0
Accrued salaries and benefits	0	0
Other liabilities	0	0
Net cash (used in) provided by continuing operating activities	-165	0
Net cash used in discontinued operating activities	0	0
Net cash (used in) provided by operating activities	-165	0
Investing activities:	'	'
Cash paid for acquisitions, net of cash acquired	0	0
Cash paid for capital expenditures	0	0
Cash paid for real estate acquisitions	0	0
Settlement of foreign currency derivatives	0	'
Other	0	0
Net cash used in investing activities	0	0
Financing activities:	'	'
Borrowings on long-term debt	0	0
Borrowings on revolving credit facility	0	0
Principal payments on revolving credit facility	0	0
Principal payments on long-term debt	165	0
Repayment of long-term debt	'	0
Payment of debt issuance costs	0	0
Issuance of common stock, net	0	'
Payment of premium on note redemption	'	0
Common stock withheld for minimum statutory taxes, net	0	0
Excess tax benefit from equity awards	0	0
Cash paid for contingent consideration	0	'
Cash (used in) provided by intercompany activity	1,925	-1,316
Net cash provided by (used in) financing activities	2,090	-1,316
Effect of exchange rate changes on cash	0	'
Net increase (decrease) in cash and cash equivalents	1,925	-1,316
Cash and cash equivalents at beginning of the period	-1,925	0
Cash and cash equivalents at end of the period	$0	($1,316)