Employee Benefit Plans - Additional Information (Details) £ in Millions	1 Months Ended		12 Months Ended
	Oct. 31, 2018 USD ($) $ / £	Oct. 31, 2018 GBP (£) $ / £	Dec. 31, 2018 USD ($) $ / £	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2018 GBP (£) $ / £
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, equalization benefit, interest percentage on base rate	1.00%	1.00%
Defined benefit plan, total equalization amount	$ 600,000	£ 0.5
GBP:USD exchange rate | $ / £	1.27	1.27
Underfunded pension and postretirement obligation, noncurrent			$ 23,900,000
Accumulated comprehensive loss defined benefit plan			40,554,000	$ 43,994,000
Defined benefit plan recognized gain loss increase(decrease)			(3,400,000)
Other comprehensive income (loss), pension and other postretirement benefit plans, net unamortized gain (loss) arising during period, before tax			$ 9,200,000
Defined benefit plan amortization of net gains losses average term			11 years 6 months
Defined benefit plan, expected future benefit payments in year one			$ 3,763,000
Defined benefit plan, expected future benefit payments in year two			4,120,000
Defined benefit plan, expected future benefit payments in year three			4,586,000
Defined benefit plan, expected future benefit payments in year four			4,959,000
Defined benefit plan, expected future benefit payments in year five			5,307,000
Defined contribution plan, cost recognized			17,000,000	14,800,000	$ 13,900,000
Deferred compensation investments			$ 10,104,000	$ 8,843,000
Deferred Compensation Plan
Defined Benefit Plan Disclosure [Line Items]
Deferred compensation arrangements, overall, description			We maintain a Non-Qualified Deferred Compensation Plan (the “Deferred Compensation Plan”) for executive officers, key employees and members of our Board of Directors. The Deferred Compensation Plan allows eligible participants to defer the receipt of eligible compensation, including equity awards, until designated future dates. We offset our obligations under the Deferred Compensation Plan by investing in the actual underlying investments. At December 31, 2018 these investments are classified as trading securities and are carried at fair value. At December 31, 2018, these investments totaled approximately $10.6 million. All gains and losses in these investments are materially offset by corresponding gains and losses in the deferred compensation plan liabilities.
Deferred compensation investments			$ 10,600,000
United States
Defined Benefit Plan Disclosure [Line Items]
Employee salary deferral contributions percentage			100.00%
Employer matching contribution amount of match			$ 1
Defined contribution plan employee matching contribution amount			$ 2
Defined contribution plan vesting period			4 years
Description of defined contribution pension and other postretirement plans			We maintain a 401(k) retirement plan (the “Plan”) for the benefit of qualified employees at our U.S. locations. Employees who participate may elect to make salary deferral contributions to the Plan up to 100% of the employees’ eligible payroll subject to annual Internal Revenue Code maximum limitations. We currently make a matching contribution of $1 for every $2 contributed by the participant up to 6% (3% maximum matching) of the participant’s eligible payroll, which vests over an initial four years. In addition, we may make a discretionary contribution to the entire qualified employee pool, in accordance with the Plan.
TAIWAN, PROVINCE OF CHINA
Defined Benefit Plan Disclosure [Line Items]
Employer matching contribution percentage			6.00%
Description of defined contribution pension and other postretirement plans			Pursuant to the Taiwan Labor Standard Law and Factory Law, we maintain a retirement plan for the employees in Taiwan, whereby we make contributions at a rate of 6% of the employee’s eligible payroll.
China
Defined Benefit Plan Disclosure [Line Items]
Description of defined contribution pension and other postretirement plans			As stipulated by the regulations of China, we maintain a retirement plan pursuant to the local municipal government for the employees in China. We are required to make contributions to the retirement plan at a rate between 10% and 22% of the employee’s eligible payroll.
Maximum | United States
Defined Benefit Plan Disclosure [Line Items]
Employer matching contribution percentage			6.00%
Employer matching contribution percent of match			3.00%
Maximum | China
Defined Benefit Plan Disclosure [Line Items]
Employer matching contribution percentage			22.00%
Minimum | China
Defined Benefit Plan Disclosure [Line Items]
Employer matching contribution percentage			10.00%
Equity Securities
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, target allocation percentage of assets, equity securities			48.00%			48.00%
Debt Securities
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, target allocation percentage of assets, equity securities			40.00%			40.00%
Equity Funds
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, target allocation percentage of assets, equity securities			12.00%			12.00%
Pension Plan, Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plans, general information			In connection with the Zetex acquisition, we adopted a contributory defined benefit plan that covers certain employees in the U.K. The defined benefit plan is closed to new entrants and frozen with respect to future benefit accruals. The retirement benefit is based on the final average compensation and service of each eligible employee. We determined the fair value of the defined benefit plan assets and utilize an annual measurement date of December 31. At subsequent measurement dates, defined benefit plan assets will be determined based on fair value. Defined benefit plan assets consist of a diverse range of listed and unlisted securities including corporate bonds and mutual funds and are denominated in the currency in which the benefits will be paid and that have terms to maturity approximating the terms of the related pension liability. The net pension and supplemental retirement benefit obligations and the related periodic costs are based on, among other things, assumptions of the discount rate, estimated return on plan assets and mortality rates. These obligations and related periodic costs are measured using actuarial techniques and assumptions.
Defined benefit plan, pension, method to determine vested benefit obligation			The projected unit credit method is the actuarial cost method used to compute the pension liabilities and related expenses.
Pension Plan, Defined Benefit | Trust for Benefit of Employee
Defined Benefit Plan Disclosure [Line Items]
GBP:USD exchange rate | $ / £			1.27			1.27
Defined benefit plan, estimated future employer contributions in current fiscal year, description			We adopted a payment plan with the trustees of the defined benefit plan, in which we would make annual contributions each year through 2030, of approximately GBP 2 million (approximately $2.6 million based on a GBP:USD exchange rate of 1.27). The annual contributions were expected to meet the deficit disclosed in the plan as of April 5, 2013 by December 31, 2030. The trustees are required to review the funding position every three years, and a further review was carried out as of April 5, 2016. The next review is scheduled for April 2019. The outcome of the review, as agreed with the trustees during the first quarter of 2017, was that contributions would continue at the existing level until December 31, 2029.
Defined benefit plan, expected future benefit payments in year one			$ 2,600,000			£ 2.0
Defined benefit plan, expected future benefit payments in year two			2,600,000			2.0
Defined benefit plan, expected future benefit payments in year three			2,600,000			2.0
Defined benefit plan, expected future benefit payments in year four			2,600,000			2.0
Defined benefit plan, expected future benefit payments in year five			2,600,000			2.0
Defined benefit plan, expected future benefit payments in ten fiscal years thereafter			$ 2,600,000			£ 2.0