Pension and Other Employee Benefits - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Defined Benefit Pension Plan With Accumulated Benefit Obligation In Excess Of Fair Value Of Plan Assets [Line Items]
Unrecognized actuarial losses included in accumulated other comprehensive loss, net of tax	$ 5,700,000	$ 5,800,000
Unrecognized actuarial losses included in accumulated other comprehensive loss, tax	$ 2,000,000	2,100,000
Defined contribution plans, maximum employee contribution	75.00%
Contribution description	The Company makes matching contributions equal to half of the first six percent of eligible compensation contributed by each employee
Percent of contribution made	6.00%
Defined benefit plan, supplementary contributions by employer	$ 2,800,000	4,000,000	$ 4,000,000
U.S. Pension Plan 2017 [Member]
Defined Benefit Pension Plan With Accumulated Benefit Obligation In Excess Of Fair Value Of Plan Assets [Line Items]
Minimum cash contribution to pension plan	0
U.S. Pension Plan 2018 [Member]
Defined Benefit Pension Plan With Accumulated Benefit Obligation In Excess Of Fair Value Of Plan Assets [Line Items]
Minimum cash contribution to pension plan	0
U.S Pension Plan 2019 [Member]
Defined Benefit Pension Plan With Accumulated Benefit Obligation In Excess Of Fair Value Of Plan Assets [Line Items]
Minimum cash contribution to pension plan	0
U.S Pension Plan 2020 [Member]
Defined Benefit Pension Plan With Accumulated Benefit Obligation In Excess Of Fair Value Of Plan Assets [Line Items]
Minimum cash contribution to pension plan	0
U.S. Pension Plan 2021 [Member]
Defined Benefit Pension Plan With Accumulated Benefit Obligation In Excess Of Fair Value Of Plan Assets [Line Items]
Minimum cash contribution to pension plan	0
Total Pension Benefits [Member]
Defined Benefit Pension Plan With Accumulated Benefit Obligation In Excess Of Fair Value Of Plan Assets [Line Items]
Benefit obligation	48,844,000	33,990,000	34,861,000
Defined benefit plan, supplementary contributions by employer	248,000	2,838,000
Non-US Pension Benefits [Member]
Defined Benefit Pension Plan With Accumulated Benefit Obligation In Excess Of Fair Value Of Plan Assets [Line Items]
Benefit obligation	23,200,000	7,802,000	$ 8,619,000
Defined benefit plan, supplementary contributions by employer	$ 248,000	$ 100,000