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Fair Value Measurements - Additional Information (Detail) - USD ($) | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014 | Aug. 13, 2015 | Dec. 12, 2014 | Sep. 26, 2014
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |
Fair value measurements assets, significant transfers from level 1 to level 2 | $ 0 | $ 0 |  |  |  |
Fair value measurements assets, significant transfers from level 2 to level 1 | 0 | 0 |  |  |  |
Fair value measurements liabilities, significant transfers from level 1 to level 2 | 0 | 0 |  |  |  |
Fair value measurements liabilities, significant transfers from level 2 to level 1 | 0 | 0 |  |  |  |
Asset impairment recorded |  |  | $ 8,615,000 |  |  |
Senior notes | 790,400,000 | 789,100,000 |  |  |  |
Carrying value of notes payable on real estate | 26,000,000 | 38,300,000 |  |  |  |
Non-controlling Interests [Member] |  |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |
Impairment of investments in unconsolidated subsidiaries |  |  | 800,000 |  |  |
Provision for loss on real estate |  |  | 1,800,000 |  |  |
Fair Value, Measurements, Non-recurring [Member] |  |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |
Asset impairment recorded | 0 | 0 | 8,615,000 |  |  |
Impairment of investments in unconsolidated subsidiaries |  |  | 3,628,000 |  |  |
Impairment of real estate |  |  | $ 1,909,000 |  |  |
Senior term loans [Member] |  |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |
Estimated fair value of senior loans | 751,400,000 | 878,600,000 |  |  |  |
Senior term loans | 744,300,000 | 877,900,000 |  |  |  |
5.00% Senior Notes [Member] |  |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |
Estimated fair value of senior loans | $ 827,600,000 | $ 802,600,000 |  |  |  |
Interest rate of long-term debt | 5.00% | 5.00% |  |  |  |
Senior notes | $ 790,400,000 | $ 789,100,000 |  |  |  |
5.00% Senior Notes [Member] | Senior Notes [Member] |  |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |
Interest rate of long-term debt | 5.00% | 5.00% |  |  |  |
4.875% Senior Notes [Member] |  |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |
Estimated fair value of senior loans | $ 607,000,000 | $ 598,800,000 |  |  |  |
Interest rate of long-term debt | 4.875% | 4.875% |  | 4.875% |  |
Senior notes | $ 591,200,000 | $ 590,500,000 |  |  |  |
4.875% Senior Notes [Member] | Senior Notes [Member] |  |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |
Interest rate of long-term debt | 4.875% | 4.875% |  | 4.875% |  |
5.25% Senior Notes [Member] |  |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |
Estimated fair value of senior loans | $ 439,300,000 | $ 430,400,000 |  |  |  |
Interest rate of long-term debt | 5.25% | 5.25% | 5.25% |  | 5.25% | 5.25%
Senior notes | $ 422,200,000 | $ 422,000,000 |  |  |  |
5.25% Senior Notes [Member] | Senior Notes [Member] |  |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |  |
Interest rate of long-term debt | 5.25% | 5.25% |  |  |  |
Senior notes | $ 426,500,000 | $ 426,682,000 |  |  |  |

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- Definition Through June 8, 2015, carrying amount of collateralized debt obligations with maturities initially due after one year or beyond the operating cycle, if longer, excluding the current portion. Obligations include, but not limited to, mortgage loans, chattel loans, and other borrowings secured by assets. June 9, 2015 and after, carrying value as of the balance sheet date of uncollateralized debt obligation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion. + References No definition available. + Details
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