Total Other Income (Expenses) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Other Income and Expenses [Abstract]
Other income (expenses), foreign currency transaction gain	$ 1,700	$ 2,700	$ 2,600
Gain on federal relief funds received		1,800
Loss on extinguishment of debt	$ 0	$ 2,645	$ 0