Restructuring - (Tables)

12 Months Ended

Dec. 31, 2018

Restructuring and Related Activities [Abstract]

Schedule of restructuring amounts

The following table summarizes the amounts related to total restructuring through December 31, 2017 (in thousands):

	Termination Benefits
Balance at December 31, 2015	$	1,105
Expense	1,516
Payments	(2,590		)
Balance at December 31, 2016	31
Expense	14
Payments	(45		)
Balance at December 31, 2017	$	—