Employer Sponsored Benefit Plan (Additional Information) (Detail) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended	12 Months Ended
	Jul. 31, 2014	Sep. 30, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Defined Benefit Plan Disclosure [Line Items]
Tax Benefit			$ (55)	$ (1,595)	$ (4,028)
Defined Contribution Plan:
Employer Contributions to 401(k) Plan			$ 2,300	2,100	1,700
Matching contribution, percent of employees' gross pay			5.00%
Matching contribution, percent of employees' gross pay, remaining 2%			50.00%
Matching contribution, percent of employees' gross pay, first 3%			100.00%
Domestic Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Pension plan liability			$ 12,668	17,552
Accumulated other comprehensive loss, net of tax			17,313	17,228
Increase in OCI pension adjustment			100	2,400
Percentage of eligible participants electing lump sum payment	62.00%
Pension lump sum payment	$ 10,300
Pension settlement cost		$ 4,900	0	$ 4,914	$ 0
Tax Benefit		$ 1,900
Future amortization of gain (loss)			$ (900)
Discount rate, benefit obligation			4.56%	4.16%
Increase in pension plan liability due to change in mortality tables				$ 2,400
Increase (decrease) in other comprehensive income, net-of-tax, due to change in mortality tables				$ (1,500)
Expected return on plan assets, benefit obligation			7.00%	7.25%
Foreign Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Pension plan liability			$ 1,400	$ 1,400
Accumulated other comprehensive loss, net of tax			400	$ 400
Minimum | Domestic Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Estimated future employer contributions in next fiscal year			3,000
Maximum | Domestic Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Estimated future employer contributions in next fiscal year			$ 4,000