Bank Credit Agreements and Other Short-Term and Long-Term Debt (Tables)

12 Months Ended

Dec. 31, 2017

Long Term Debt By Current And Noncurrent [Abstract]

Schedule of Debt

Long-term debt balances as of December 31, consist of the following:

	2017			2016
Notes payable to Taiwan bank, original principal amount of TWD 132 million, variable interest (approximately 1.7% as of December 31, 2017), matures July 6, 2021.	$	1,271		$	1,466
Term loan  and revolver		268,812			428,375
Total long-term debt		270,083			429,841
Less:  Current portion		(20,636	)		(14,356	)
Less:  Unamortized debt issuance costs		(1,955	)		(2,359	)
Long-term debt, net of current portion	$	247,492		$	413,126

Schedule of Maturities of Long Term Debt

The table below sets forth the annual contractual maturities of long-term debt at December 31, 2017:

2018	$	20,636
2019		26,892
2020		33,147
2021		189,408
Total long-term debt	$	270,083