Benefit Plans	3 Months Ended
Mar. 31, 2017
Compensation And Retirement Disclosure [Abstract]
Benefit Plans	15.Benefit Plans In 2016 the Company authorized the termination of international defined benefit pension plans under which approximately 336 participants, including 53 active employees, have accrued benefits. The Company anticipates completing the termination of this plan by the end of the second quarter of 2017, once regulatory approvals are obtained. In addition to plan assets, the Company estimates it will need to make a one-time payment of $14.0 to $20.0 ($9.0 to $14.0 after tax) to purchase annuities for participants. The Company estimates that it will incur a one-time expense of $44.0 to $50.0 ($36.0 to $41.0 after tax) in 2017 when the plan settlement is completed. This expense primarily includes the effect of the additional cash payment required at settlement and pension settlement accounting rules which require accelerated recognition of actuarial losses that were to be amortized over the expected benefit lives of participants. The estimated expense is subject to change based on valuations at the actual date of settlement. Upon the termination of these plans in 2017, the Company will have no further obligations with respect to material defined benefit pension plans.

Benefit Plans

3 Months Ended

Mar. 31, 2017

Compensation And Retirement Disclosure [Abstract]

15.Benefit Plans

In 2016 the Company authorized the termination of international defined benefit pension plans under which approximately 336 participants, including 53 active employees, have accrued benefits. The Company anticipates completing the termination of this plan by the end of the second quarter of 2017, once regulatory approvals are obtained. In addition to plan assets, the Company estimates it will need to make a one-time payment of $14.0 to $20.0 ($9.0 to $14.0 after tax) to purchase annuities for participants. The Company estimates that it will incur a one-time expense of $44.0 to $50.0 ($36.0 to $41.0 after tax) in 2017 when the plan settlement is completed. This expense primarily includes the effect of the additional cash payment required at settlement and pension settlement accounting rules which require accelerated recognition of actuarial losses that were to be amortized over the expected benefit lives of participants. The estimated expense is subject to change based on valuations at the actual date of settlement. Upon the termination of these plans in 2017, the Company will have no further obligations with respect to material defined benefit pension plans.