Annual report pursuant to Section 13 and 15(d)

Investment in Joint Ventures - Summary of Revenues, Expenses and Cash Flows Arising from Off-Balance Sheet Arrangements (Detail)

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Investment in Joint Ventures - Summary of Revenues, Expenses and Cash Flows Arising from Off-Balance Sheet Arrangements (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Schedule of Equity Method Investments [Line Items]      
Other operating income $ 48,376 $ 44,447 $ 34,487
General and administrative 48,322 50,031 43,103
Equity in income of joint ventures 4,122 3,314 3,665
Distributions from unconsolidated joint ventures 8,561 7,055 5,207
Receipts from (advances to) joint ventures, net (391) 174 294
Investment in unconsolidated joint ventures 7,718 69,911 6,438
Unconsolidated Joint Ventures [Member]      
Schedule of Equity Method Investments [Line Items]      
Other operating income 7,848 8,090 4,891
General and administrative 1,188 1,192 1,214
Equity in income of joint ventures 4,122 3,314 3,665
Distributions from unconsolidated joint ventures 8,561 7,055 5,207
Receipts from (advances to) joint ventures, net 391 (174) (294)
Investment in unconsolidated joint ventures $ (7,718) $ (69,911) $ (6,438)