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Property, Plant and Equipment - Schedule of Balances Held Under Other Finance Obligations (Detail) - Other Finance Obligations - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Property Plant And Equipment [Line Items]    
Assets held under other finance obligations $ 241,048 $ 248,028
Less: accumulated amortization 23,597 25,015
Assets held under other finance obligations, net 217,451 223,013
Land    
Property Plant And Equipment [Line Items]    
Assets held under other finance obligations 114,938 116,638
Buildings and Improvements    
Property Plant And Equipment [Line Items]    
Assets held under other finance obligations $ 126,110 $ 131,390