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Other Accrued Liabilities - Summary of Other Accrued Liabilities (Detail) - USD ($)
$ in Thousands
Mar. 31, 2019
Dec. 31, 2018
Accounts Payable And Accrued Liabilities Current [Abstract]    
Unearned income $ 40,862 $ 32,154
Accrued expenses 40,235 44,938
Accrued legal settlements 17,075 22,076
Accrued interest 11,917 32,838
Finance lease liabilities 7,210 445
Income taxes payable 6,053 3,041
Insurance liability – current portion 4,956 4,956
Accrued property taxes 4,641 4,136
Other 2,023 6,642
Other accrued liabilities $ 134,972 $ 151,226