Summary of Accrual Activities by Components Related to Company's Restructuring Charges (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2016 USD ($)
Restructuring Cost And Reserve [Line Items]
Accrued expense beginning balance	$ 1,882
Restructuring charges	4,700	[1]
Cash payments	(3,646)
Non-cash write-offs and other adjustments	(632)
Accrued expense ending balance	2,304
Severance
Restructuring Cost And Reserve [Line Items]
Accrued expense beginning balance	1,358
Restructuring charges	2,372	[1]
Cash payments	(2,635)
Non-cash write-offs and other adjustments	(45)
Accrued expense ending balance	1,050
Facility Closing
Restructuring Cost And Reserve [Line Items]
Accrued expense beginning balance	406
Restructuring charges	949	[1]
Cash payments	(154)
Non-cash write-offs and other adjustments	24
Accrued expense ending balance	1,225
Depreciation
Restructuring Cost And Reserve [Line Items]
Restructuring charges	616	[1]
Non-cash write-offs and other adjustments	(616)
Other Restructuring Charges
Restructuring Cost And Reserve [Line Items]
Accrued expense beginning balance	118
Restructuring charges	763	[1]
Cash payments	(857)
Non-cash write-offs and other adjustments	5
Accrued expense ending balance	$ 29

[1] Excludes $1.6 million of gain on sale of the Chatsworth, California facility.