Restructuring Costs - Additional Information (Details) - KFAB Wafer Manufacturing Operations - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Mar. 31, 2017	Jun. 30, 2017	Feb. 28, 2017
Restructuring Cost And Reserve [Line Items]
Restructuring activities description		In February 2017, the Company announced its plan to transfer its wafer fabrication operation in Lee’s Summit, MO, (“KFAB”) to other Company-owned wafer fabrication plants and external foundries. The Company expects to cease operations at KFAB late in third quarter 2017 and to vacate the premises no later than November 15, 2017.
Proceeds from insurance settlement	$ 6,000
Additional asset retirement obligations related to restructuring		$ 1,403
Property, Plant and Equipment
Restructuring Cost And Reserve [Line Items]
Asset retirement obligation recorded		$ 1,200
Minimum
Restructuring Cost And Reserve [Line Items]
Expected shutdown costs			$ 10,000
Maximum
Restructuring Cost And Reserve [Line Items]
Expected shutdown costs			$ 12,000
Cost of Goods Sold
Restructuring Cost And Reserve [Line Items]
Proceeds from insurance settlement	4,200
Other Income
Restructuring Cost And Reserve [Line Items]
Proceeds from insurance settlement	$ 1,800