Restructuring Expenses (Tables)

3 Months Ended

Mar. 31, 2019

Restructuring and Related Activities [Abstract]

Changes in the Accrued Restructuring Liability

Changes in the accrued restructuring liability (in thousands) were as follows:

	Three months ended March 31, 2019
	Manufacturing Optimization Plan												Reorganization Plan
	Employee Termination Benefits			Accelerated Depreciation			Other			Total			Employee Termination Benefits			Total
Balance, beginning of period	$	24,958		$	—		$	79		$	25,037		$	3,461		$	28,498
Restructuring expense (benefit)	9			8,379			5,636			14,024			(394		)	13,630
Utilized - cash	(2,600		)	—			(5,528		)	(8,128		)	(2,014		)	(10,142		)
Utilized - non cash	—			(8,379		)	—			(8,379		)	—			(8,379		)
Foreign currency changes	34			—			—			34			(2		)	32
Balance, end of period	$	22,401		$	—		$	187		$	22,588		$	1,051		$	23,639

	Three months ended April 1, 2018
	Manufacturing Optimization Plan												Reorganization Plan
	Employee Termination Benefits			Accelerated Depreciation			Other			Total			Employee Termination Benefits		Total
Balance, beginning of period	$	—		$	—		$	—		$	—		$	—	$	—
Restructuring expense	40,791			5,613			438			46,842			—		46,842
Utilized - cash	(2,300		)	—			(374		)	(2,674		)	—		(2,674		)
Utilized - non cash	—			(5,613		)	—			(5,613		)	—		(5,613		)
Foreign currency changes	(204		)	—			(1		)	(205		)	—		(205		)
Balance, end of period	$	38,287		$	—		$	63		$	38,350		$	—	$	38,350