Restructuring Activities (Tables)

12 Months Ended

Dec. 31, 2019

Restructuring And Related Activities [Abstract]

Rollforward of accrued restructuring liability

A rollforward of the accrued restructuring liability is presented below (in thousands):

Balance at December 31, 2018	$	710
Accrued restructuring charges		60
Payments		(746	)
Balance at December 31, 2019	$	24