Other Assets - Long-Term (Detail) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]
Prepaid interest	$ 4,299	$ 4,322
Deposits	359	357
Other noncurrent assets	1,068	1,117
Total	$ 5,726	$ 5,796