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Fair Value Measurements - Schedule of Non-Recurring Fair Value Measurements (Detail) - USD ($) | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Property and equipment, Total impairment charges |  |  | $ 8,615,000
Fair Value, Measurements, Non-recurring [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Property and equipment, Net Carrying Value |  |  | 0
Investments in unconsolidated subsidiaries, Net Carrying Value |  |  | 26,266,000
Real estate, Net Carrying Value |  |  | 3,840,000
Property and equipment, Total impairment charges | $ 0 | $ 0 | 8,615,000
Investments in unconsolidated subsidiaries, Total impairment charges |  |  | 3,628,000
Real estate, Total impairment charges |  |  | 1,909,000
Total impairment charges |  |  | 14,152,000
Fair Value, Measurements, Non-recurring [Member] | Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1) [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Property and equipment, Fair Value |  |  | 0
Fair Value, Measurements, Non-recurring [Member] | Significant Observable Inputs (Level 2) [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Property and equipment, Fair Value |  |  | 0
Investments in unconsolidated subsidiaries, Fair Value |  |  | 26,266,000
Real estate, Fair Value |  |  | 3,840,000
Fair Value, Measurements, Non-recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Property and equipment, Fair Value |  |  | $ 0

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- Definition Fair value of portion of investment in affiliates subsidiaries associates and joint ventures that were impaired during the period. + References No definition available. + Details
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- Definition Carrying value of portion of property and equipment that was impaired during the period. + References No definition available. + Details
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- Definition Fair value as of the balance sheet date of the portion of property, plant and equipment that was impaired during the period. + References No definition available. + Details
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- Definition Sum of the carrying value as of the balance sheet date of all real estate assets including real estate held for sale, real estate under development and real estate held for investment that were impaired during the period. + References No definition available. + Details
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- Definition Sum of the fair value as of the balance sheet date of all real estate assets including real estate held for sale, real estate under development and real estate held for investment that were impaired during the period. + References No definition available. + Details
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- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=68055307&loc=d3e2420-110228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 + Details
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- Definition This item represents an other than temporary decline in value that has been recognized against an investment accounted for under the equity method of accounting. The excess of the carrying amount over the fair value of the investment represents the amount of the write down which is or was reflected in earnings. The written down value is a new cost basis with the adjusted value of the investment becoming its new carrying value subject to the equity accounting method. Evidence of a loss in value might include, but would not necessarily be limited to, absence of an ability to recover the carrying amount of the investment or inability of the investee to sustain an earnings capacity which would justify the carrying amount of the investment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 35 -Paragraph 32 -URI http://asc.fasb.org/extlink&oid=64825282&loc=d3e32787-111569 + Details
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