v3.8.0.1
Other Assets and Other Liabilities - Schedule of Amortization Expense and Rental Revenues (Detail)
$ in Thousands
 12 Months Ended
Dec. 31, 2017
USD ($)
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]  
Amortization Expense 2018 $ 107,897
Amortization Expense 2019 90,168
Amortization Expense 2020 73,790
Amortization Expense 2021 56,494
Amortization Expense 2022 41,689
Amortization Expense Thereafter 98,233
Amortization Expense Totals 468,271
2018 (13,862)
2019 25,635
2020 42,140
2021 46,332
2022 41,855
Thereafter 185,340
Total $ 327,440