Benefit Plans - Pension Plans with Accumulated Benefit Obligation or Projected Benefit Obligation in Excess of Plan Assets (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
U.S. Pension Plans
Pension plans with a projected benefit obligation in excess of plan assets:
Projected benefit obligation	$ 76.3	$ 158.1
Fair value of plan assets	14.5	85.3
Pension plans with an accumulated benefit obligation in excess of plan assets:
Projected benefit obligation	76.3	87.1
Fair value of plan assets	14.5	15.5
Accumulated benefit obligation	73.1	77.2
Non-US Pension Plans
Pension plans with a projected benefit obligation in excess of plan assets:
Projected benefit obligation	438.2	436.7
Fair value of plan assets	259.0	222.4
Pension plans with an accumulated benefit obligation in excess of plan assets:
Projected benefit obligation	420.4	431.3
Fair value of plan assets	244.5	217.2
Accumulated benefit obligation	$ 411.5	$ 420.0