Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2015

Compensation And Retirement Disclosure [Abstract]

The net periodic pension cost included the following components (in thousands):

	Year Ended December 31,
	2015			2014			2013
Components of the net periodic pension cost:
Interest cost	$	1,340		$	1,589		$	1,403
Expected return on plan assets		(1,844	)		(1,958	)		(1,595	)
Amortization of actuarial losses		875			374			668
Net periodic pension cost	$	371		$	5		$	476

Actuarial Assumptions used to Compute net Periodic Pension Cost and Funded Status for U.K. Plan

The actuarial assumptions used to compute the net periodic pension cost for the years ended December 31, 2015, 2014 and 2013, respectively, for the U.K. Plan were as follows:

	Year Ended December 31,
	2015			2014			2013
Weighted-average discount rate		3.5	%		4.6	%		4.3	%
Weighted-average long-term rate of return on plan assets		5.6	%		5.9	%		5.7	%

The actuarial assumptions used to compute the funded status of the U.K. Plan as of December 31, 2015 and 2014, respectively, were as follows:

	December 31,
	2015			2014
Weighted-average discount rate		3.8	%		3.5	%
Rate of inflation		2.8	%		2.7	%

Reconciliation of Benefit Obligations and Plan Assets of U.K. Plan

The following table provides a reconciliation of benefit obligations and plan assets of the U.K. Plan (in thousands):

	December 31,
	2015			2014
Change in benefit obligation:
Projected benefit obligation at beginning of year	$	39,421		$	35,193
Interest cost		1,340			1,589
Actuarial (gains) losses		(2,083	)		6,060
Benefits paid		(798	)		(1,006	)
Foreign currency exchange rate changes		(1,966	)		(2,415	)
Projected benefit obligation at end of year	$	35,914		$	39,421
Accumulated benefit obligation at end of year	$	35,914		$	39,421
Change in plan assets:
Fair value of plan assets at beginning of year	$	33,610		$	33,457
Actual return on plan assets		342			2,234
Employer contributions		955			1,000
Benefits paid		(798	)		(1,006	)
Foreign currency exchange rate changes		(1,735	)		(2,075	)
Fair value of plan assets at end of year	$	32,374		$	33,610
Funded status at end of year	$	(3,540	)	$	(5,811	)
Amounts included in accumulated other comprehensive loss not yet recognized in net periodic pension cost:
Net actuarial loss	$	(9,874	)	$	(11,890	)
Amounts expected to be amortized from accumulated other comprehensive loss into net periodic pension cost over the next fiscal year consists of:
Net actuarial loss	$	794		$	892

The funded status of the U.K. Plan is included in other long term liabilities in the accompanying consolidated balance sheets.

Expected Future Benefit Payments

The following table reflects the total expected benefit payments to plan participants and have been estimated based on the same assumptions used to measure the Company’s benefit obligations as of December 31, 2015 (in thousands):

	Amount
2016	$	941
2017		1,043
2018		868
2019		1,244
2020		1,428
2021-2025		8,135
Total	$	13,659

Summary of Fair Value of Plan Assets by Asset Category

The following table summarizes the fair values of Plan assets by asset category as of December 31, 2015 (in thousands):

Asset Category	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Other Unobservable Inputs (Level 3)
Mutual Funds:
Balanced (1)	$	15,611	$	—	$	15,611	$	—
Growth (2)		16,583		—		16,583		—
Cash		180		180		—		—
Total	$	32,374	$	180	$	32,194	$	—

(1)	This class comprises a diversified portfolio of global investments which seeks a balanced return between capital growth and fixed income and is allocated on a weighted average basis as follows: equities (52%), bonds (24%), other assets (9%) and cash (15%).

(2)	This class comprises a diversified portfolio of global investments which seeks long-term capital growth and is allocated on a weighted average basis as follows: equities (67%), bonds (12%), other assets (9%) and cash (12%).

The following table summarizes the fair values of Plan assets by asset category as of December 31, 2014 (in thousands):

Asset Category	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Other Unobservable Inputs (Level 3)
Mutual Funds:
Balanced (1)	$	16,287	$	—	$	16,287	$	—
Growth (2)		17,149		—		17,149		—
Cash		174		174		—		—
Total	$	33,610	$	174	$	33,436	$	—

(1)	This class comprises a diversified portfolio of global investments which seeks a balanced return between capital growth and fixed income and is allocated on a weighted average basis as follows: equities (54%), bonds (32%), other assets (5%) and cash (9%).

(2)	This class comprises a diversified portfolio of global investments which seeks long-term capital growth and is allocated on a weighted average basis as follows: equities (67%), other assets (15%), bonds (8%), and cash (10%).