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Long-Term Debt - Schedule of Interest Expense Related to Long-Term Debt (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Interest Expense Debt [Abstract]        
Contractual interest $ 1,736 $ 1,835 $ 5,374 $ 6,229
Non-cash expense 1,053 1,018 3,174 3,807
Capitalized interest (41) (78) (125) (236)
Total $ 2,748 $ 2,775 $ 8,423 $ 9,800