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Business Combinations - Narrative (Details) $ in Thousands |  | 1 Months Ended | 3 Months Ended | 6 Months Ended |
--- | --- | --- | --- | --- | ---
Apr. 05, 2017 USD ($) bed | Jul. 31, 2017 USD ($) | Jun. 30, 2017 USD ($) | Jun. 30, 2017 USD ($) | Jun. 30, 2016 USD ($) | Dec. 31, 2016 USD ($)
Business Acquisition [Line Items] |  |  |  |  |  |
Acquisition of CEC, net of cash acquired |  |  |  | $ 354,466 | $ 0 |
Goodwill |  |  | $ 787,803 | 787,803 |  | $ 615,433
Community Education Centers |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Number of beds in facility (more than 12,000) | bed | 12,000 |  |  |  |  |
Percentage of voting interests acquired | 100.00% |  |  |  |  |
Acquisition of CEC, net of cash acquired | $ 354,500 |  |  |  |  |
Cash acquired from acquisition | 3,000 |  |  |  |  |
Acquisition related costs | 4,100 |  |  |  |  |
Debt outstanding | 115,000 |  |  |  |  |
Goodwill | 172,343 |  |  |  |  |
Revenue for CEC activity since acquisition |  |  | 56,700 | 56,700 |  |
Earnings for CEC activity since acquisition |  |  | 2,600 | 2,600 |  |
Maximum potential adjustment to purchase price | $ 1,900 |  |  |  |  |
Acquisition-related Costs | Community Education Centers |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Acquisition related costs |  |  | $ 7,800 | $ 10,400 |  |
Subsequent Event | Community Education Centers |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Purchase price adjustment, decrease |  | $ 2,600 |  |  |  |

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- Definition Percentage of voting equity interests acquired at the acquisition date in the business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1392-128463 + Details
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- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=73531572&loc=d3e1043-128460 + Details
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- Definition This element represents the amount of earnings or loss of the acquiree since the acquisition date included in the consolidated income statement for the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1392-128463 + Details
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- Definition This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1392-128463 + Details
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- Definition The cash inflow associated with the acquisition of business during the period (for example, cash that was held by the acquired business). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3179-108585 + Details
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