Retirement and Other Postretirement Benefit Plans - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
U.S. Non-qualified Defined Benefit Retirement Plans
Amounts recognized on the balance sheet:
Employer contribution to defined benefit retirement plans	$ 0.1		$ 0.2
Expected employer contribution in full current year	1.1
European Defined Benefit Retirement Plans
Amounts recognized on the balance sheet:
Employer contribution to defined benefit retirement plans	1.3	$ 2.4	6.3
Expected employer contribution in full current year	5.1
Postretirement Health Care and Life Insurance Benefit Plans
Amounts recognized on the balance sheet:
Employer contribution to defined benefit retirement plans	0.1	$ 0.1	$ 0.1
Expected employer contribution in full current year	$ 0.5