Debt (Details) - USD ($)	1 Months Ended	12 Months Ended
	Jan. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Mar. 31, 2016	Nov. 30, 2015	May 31, 2015	Jun. 30, 2012
Debt Instruments [Abstract]
Proceeds from issuance of long-term debt		$ 46,000,000	$ 400,000,000	$ 80,000,000
Letter of Credit [Member]
Debt Instruments [Abstract]
Letter of credit		500,000
Letter of Credit [Member] | $200 million revolving credit facility, LIBOR plus 1.25%-1.75%, due December 2019 (1)
Debt Instruments [Abstract]
Credit facility, borrowing capacity		25,000,000.0
Subsidiary Term Loans [Member] | KOREA, REPUBLIC OF | Term loan, fund floating rate plus 1.60%, due June 2020 (3)
Debt Instruments [Abstract]
Unused borrowing capacity		64,000,000					$ 150,000,000
Subsidiary Term Loans [Member] | JAPAN | Short-term term loans, variable rate (4)
Debt Instruments [Abstract]
Unused borrowing capacity		4,700,000
Line of Credit [Member] | Revolving Credit Facility [Member] | $200 million revolving credit facility, LIBOR plus 1.25%-1.75%, due December 2019 (1)
Debt Instruments [Abstract]
Credit facility, borrowing capacity		$ 200,000,000
Line of Credit Facility, Borrowing Capacity, Description		The availability for the revolving credit facility is based on the amount of our eligible accounts receivable, which exceeded $200.0 million
Remaining borrowing capacity		$ 199,500,000
Line of Credit [Member] | Revolving Credit Facility [Member] | KOREA, REPUBLIC OF | $100 million revolving credit facility, foreign currency funding-linked base rate plus 1.60%, due June 2017 (2)
Debt Instruments [Abstract]
Credit facility, borrowing capacity		100,000,000			$ 100,000,000.0			$ 41,000,000.0
Remaining borrowing capacity		100,000,000.0
Line of Credit [Member] | Revolving Credit Facility [Member] | TAIWAN, PROVINCE OF CHINA | Revolving credit facility, TAIFX plus a bank-determined spread, due November 2020 (Taiwan) (5)
Debt Instruments [Abstract]
Credit facility, borrowing capacity						$ 39,000,000
Remaining borrowing capacity		19,000,000
Line of Credit [Member] | Letter of Credit [Member] | $200 million revolving credit facility, LIBOR plus 1.25%-1.75%, due December 2019 (1)
Debt Instruments [Abstract]
Credit facility, borrowing capacity		25,000,000
Letter of credit		500,000
Loans Payable [Member] | CHINA | Term Loan, LIBOR plus 1.80% due December 2019 [Member]
Debt Instruments [Abstract]
Amount of debt agreement		50,000,000.0
Semiannual installments payable		$ 500,000
Subsequent Event | Loans Payable [Member] | CHINA | Term Loan, LIBOR plus 1.80% due December 2019 [Member]
Debt Instruments [Abstract]
Proceeds from issuance of long-term debt	$ 50,000,000