Long-Term Debt - Schedule of Long-Term Debt Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Long-term debt, gross	$ 560,937	$ 490,256
Debt issuance costs	(17,240)	(20,520)
Total long-term debt, net	543,697	469,736
Less: Current portion of long-term debt	(48,004)	(14,588)
Long-term debt, net of current portion	495,693	455,148
Term Loan Facility, Term B Loan [Member]
Debt Instrument [Line Items]
Long-term debt, gross	440,803	443,161
Term Loan Facility, Term A Loan [Member]
Debt Instrument [Line Items]
Long-term debt, gross	64,750	0
Bangkok Bank Loan [Member]
Debt Instrument [Line Items]
Long-term debt, gross	20,000	16,000
Revolving Credit Agreement [Member]
Debt Instrument [Line Items]
Long-term debt, gross	15,000	0
Equipment Loans [Member]
Debt Instrument [Line Items]
Long-term debt, gross	20,384	31,095
Total long-term debt, net	$ 20,400	$ 31,100

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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