Retirement Plans - Additional Information (Detail) (USD $)	12 Months Ended		12 Months Ended					12 Months Ended
	Dec. 31, 2012 Employee	Dec. 31, 2013	Dec. 31, 2013 United States Plans	Dec. 31, 2012 United States Plans	Dec. 31, 2013 U.K. Defined Benefit Pension Plan	Dec. 31, 2013 Other Foreign Defined Benefit Pension Plans	Dec. 31, 2013 International Pension Plans	Dec. 31, 2013 U.S. Supplemental Executive Defined Benefit Pension Plan	Dec. 31, 2012 U.S. Supplemental Executive Defined Benefit Pension Plan	Dec. 31, 2013 U.S. Qualified Pension Plan	Dec. 31, 2012 U.S. Qualified Pension Plan	Dec. 31, 2013 Net Periodic Benefit Cost	Dec. 31, 2014 Postretirement Benefit Costs Subsequent Event
Defined Benefit Plan Disclosure
Number of former employees elected to receive lump-sum payment	2,000
Lump sum payment made for former employees	$ 52,000,000
Accumulated other comprehensive income (loss), prior service cost expected to be recognized												100,000	(600,000)
Accumulated benefit obligation for defined benefit pension plans	360,400,000	331,200,000
Percentage of expected return on plan assets assumption			5.00%
Discount rate utilized to determine future pension obligations			4.50%	3.60%
Fair value of pension plans assets totaled	302,899,000	282,129,000	256,400,000		24,800,000	900,000	25,700,000
Fair Value of assets		256,400,000
Contributions								$ 1,700,000	$ 1,700,000	$ 2,500,000	$ 1,600,000