Restructuring Charges (Tables)

12 Months Ended

Dec. 31, 2018

Restructuring and Related Activities [Abstract]

Schedule of Restructuring Charges by Type of Cost

Restructuring charges are as follows (in thousands):

	Employee Separation Costs
Costs incurred and charged to expense for the year ended December 31, 2018	$	1,873
Costs incurred and charged to expense for the year ended December 31, 2017	$	2,526
Costs incurred and charged to expense for the year ended December 31, 2016	$	1,489

Schedule of Restructuring Reserve by Type of Cost

Changes to the accrued restructuring liability (which is included in Accrued and other current liabilities) for 2018, 2017 and 2016, (in thousands):

	Employee Separation Costs
Accrued liability as of December 31, 2015	$	1,404
Costs incurred and charged to expense for the year ended December 31, 2016	1,489
Cash payments	(2,684		)
Accrued liability as of December 31, 2016	209
Costs incurred and charged to expense for the year ended December 31, 2017	2,526
Cash payments	(2,491		)
Accrued liability as of December 31, 2017	244
Costs incurred and charged to expense for the year ended December 31, 2018	1,873
Cash payments	(1,362		)
Accrued liability as of December 31, 2018	$	755