Employee Benefit Plans - Schedule of Defined Benefit Pension Plan Balances with Accumulated Benefit Obligation Exceeded Fair Value of Plan Assets (Detail) - Foreign Pension Plans, Defined Benefit - Defined Benefit Pension Plans ABO Exceeds Plan Assets - USD ($) $ in Millions |
Dec. 31, 2015 |
Dec. 31, 2014 |
|---|---|---|
| Pension Plans Postretirement And Other Employee Benefits [Line Items] | ||
| Projected Benefit Obligation (PBO) | $ 518.1 | $ 621.7 |
| Accumulated Benefit Obligation (ABO) | 498.7 | 592.5 |
| Fair value of plan assets | $ 321.6 | $ 390.6 |