Other Assets (Tables)

12 Months Ended

Dec. 31, 2019

Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]

Summary of Other Assets

	December 31,
	2018		2019
	(In thousands)
Pension asset	$	1,898	$	4,294
Other		1,210		1,566
Total	$	3,108	$	5,860