Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2017

Compensation And Retirement Disclosure [Abstract]

Schedule of Pension Benefit Plan Obligations and Funded Status

The pension benefit plan obligations and funded status at December 31, 2017 and 2016, are as follows:

(In thousands)	2017			2016
Change in projected benefit obligation:
Projected benefit obligation at beginning of period	$	30,011		$	26,851
Service cost		1,260			1,211
Interest cost		607			720
Actuarial (gain) loss - experience		47			(431	)
Actuarial (gain) loss - assumptions		(1,294	)		2,628
Benefit payments		(80	)		(52	)
Effects of foreign currency exchange rate changes		4,342			(916	)
Projected benefit obligation at end of period		34,893			30,011
Change in plan assets:
Fair value of plan assets at beginning of period		20,045			19,213
Actual return on plan assets		709			1,494
Contributions		3,001			—
Effects of foreign currency exchange rate changes		2,869			(662	)
Fair value of plan assets at end of period		26,624			20,045
Funded (unfunded) status at end of period	$	(8,269	)	$	(9,966	)

Summary of Net Amounts Recognized Balance Sheet for the Unfunded Pension Liability

The net amounts recognized in the balance sheet for the unfunded pension liability as of December 31, 2017 and 2016 are as follows:

(In thousands)	2017		2016
Current liability	$	—	$	—
Non-current liability		8,269		9,966
Total	$	8,269	$	9,966

Components of Net Periodic Pension Cost and Amounts Recognized Other Comprehensive Income

The components of net periodic pension cost and amounts recognized in other comprehensive income for the years ended December 31, 2017, 2016 and 2015 are as follows:

(In thousands)	2017			2016			2015
Net periodic benefit cost:
Service cost	$	1,260		$	1,211		$	1,314
Interest cost		607			720			615
Expected return on plan assets		(1,267	)		(1,057	)		(1,011	)
Amortization of actuarial losses		309			175			407
Net periodic benefit cost		909			1,049			1,325
Other changes in plan assets and benefit obligations recognized in other comprehensive income:
Net actuarial (gain) loss		(654	)		1,782			(2,303	)
Amortization of actuarial losses		(406	)		(156	)		(396	)
Amount recognized in other comprehensive income		(1,060	)		1,626			(2,699	)
Total recognized in net periodic benefit cost and other comprehensive income	$	(151	)	$	2,675		$	(1,374	)

Accumulated Other Comprehensive Income

The amounts recognized in accumulated other comprehensive income as of December 31, 2017 and 2016 are as follows:

(In thousands)		2017				2016
Net actuarial loss		$	(5,812	)		$	(6,871	)

Weighted-Average Assumptions Used to Determine Net Periodic Benefit Cost

The weighted-average assumptions that were used to determine the net periodic benefit cost for the years ended December 31, 2017, 2016 and 2015 are as follows:

	2017			2016			2015
Discount rates		1.90	%		2.64	%		2.20	%
Rate of compensation increase		2.00	%		2.00	%		2.25	%
Expected long-term rates of return		5.90	%		5.40	%		5.40	%

Weighted-Average Assumptions Used to Determine Benefit Obligation

The weighted-average assumptions that were used to determine the benefit obligation at December 31, 2017 and 2016:

	2017			2016
Discount rates		2.13	%		1.90	%
Rate of compensation increase		2.00	%		2.00	%

Schedule of Pension Benefit Payments Expected Future Service

The following pension benefit payments, which reflect expected future service, as appropriate, are expected to be paid to participants:

(In thousands)
2018	$	549
2019		772
2020		1,090
2021		1,225
2022		1,315
2023 – 2027		6,301
Total	$	11,252

Schedule of Cash Equivalents and Investments Held at Fair Value

We have categorized our cash equivalents and our investments held at fair value into a three-level fair value hierarchy based on the priority of the inputs to the valuation technique for the cash equivalents and investments as follows: Level 1 - Values based on unadjusted quoted prices for identical assets or liabilities in an active market; Level 2 - Values based on quoted prices in markets that are not active or model inputs that are observable either directly or indirectly; Level 3 - Values based on prices or valuation techniques that require inputs that are both unobservable and significant to the overall fair value measurement. These inputs include information supplied by investees.

	Fair Value Measurements at December 31, 2017 Using
(In thousands)	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Cash and cash equivalents	$	3,005	$	3,005	$	—	$	—
Available-for-sale securities
Bond funds:
Corporate bonds		14,349		14,349		—		—
Government bonds		2,305		2,305		—		—
Equity funds:
Large cap blend		5,758		5,758		—		—
Large cap value		309		309		—		—
Balanced fund		898		898		—		—
Available-for-sale securities		23,619		23,619		—		—
Total	$	26,624	$	26,624	$	—	$	—

	Fair Value Measurements at December 31, 2016 Using
(In thousands)	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Cash and cash equivalents	$	6	$	6	$	—	$	—
Available-for-sale securities
Bond funds:
Corporate bonds		12,546		12,546		—		—
Government bonds		2,037		2,037		—		—
Equity funds:
Large cap blend		4,462		4,462		—		—
Large cap value		249		249		—		—
Balanced fund		745		745		—		—
Available-for-sale securities		20,039		20,039		—		—
Total	$	20,045	$	20,045	$	—	$	—

Fair Value of Assets Held by Trust and Amounts Payable to Plan Participants

The fair value of the assets held by the Trust and the amounts payable to the plan participants at December 31, 2017 and 2016 are as follows:

(In thousands)	2017		2016
Fair Value of Plan Assets
Long-term Investments	$	19,883	$	14,596
Total Fair Value of Plan Assets	$	19,883	$	14,596
Amounts Payable to Plan Participants
Non-current Liabilities	$	19,883	$	14,596
Total Amounts Payable to Plan Participants	$	19,883	$	14,596