Other Long-Term Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Schedule of Other Long Term Assets [Line Items]
Other long-term assets, related to certain software and maintenance contracts	$ 5,323	$ 5,297
Other Long-Term Assets
Schedule of Other Long Term Assets [Line Items]
Deferred debt-issuance costs	1,400	1,800
Other long-term assets, related to certain software and maintenance contracts	$ 3,900	1,800
Derivative Assets
Schedule of Other Long Term Assets [Line Items]
Derivative assets		$ 1,700