Employer Sponsored Benefit Plan (Additional Information) (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Defined Benefit Plan Disclosure [Line Items]
Estimated actuarial net loss to be amortized in 2014	$ (1,069,000)	$ (918,000)	$ (582,000)
Expected return on plan assets, Benefit Obligation	7.25%	7.50%
Defined Contribution Plan Employer Contribution	1,700,000	1,600,000	1,400,000
Accumulated other comprehensive loss	14,830,000	21,342,000
Defined Contribution Plan Employer Matching Contribution Percent Of Match Description	Matching contributions by the Company are made on employee pretax contributions up to five percent of compensation, with the first three percent matched at 100% and the next two percent matched at 50%.
United States Pension Plans Of Us Entity, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Accrued Benefit Liability	12,700,000	23,700,000
Foreign Operations
Defined Benefit Plan Disclosure [Line Items]
Accrued Benefit Liability	1,200,000	1,200,000
Accumulated other comprehensive loss	200,000	200,000
Domestic Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Increase or decrease in pension liability included in other comprehensive income	6,500,000	2,900,000
Estimated actuarial net loss to be amortized in 2014	700,000
Cash	$ 4,200,000