Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Effective Income Tax Rate Reconciliation, Percent [Abstract]
U.S. Federal tax rate	35.00%	35.00%	35.00%
State and local income taxes	2.00%	(2.00%)	(2.00%)
Tax credits	12.00%	0.00%	0.00%
Capital gain - timber	(15.00%)	0.00%	0.00%
Stock-based compensation	(2.00%)	(0.00%)	(0.00%)
Domestic manufacturing deduction	(2.00%)	(0.00%)	(0.00%)
Valuation allowance	(12.00%)	31.00%	10.00%
Uncertain tax positions	21.00%	(4.00%)	1.00%
Other, net	0.00%	2.00%	0.00%
Effective tax rate (%)	12.00%	(3.00%)	(27.00%)
Tax positions taken in current year	$ 26.9	$ 0.0	$ 0.1
Excess Tax Benefit from Share-based Compensation		16.9
Income Tax Refunds	0.8	0.1	1.6
Income Taxes Paid	8.7	16.0	3.7
Deferred Tax Assets, Operating Loss Carryforwards	(83.4)	(137.3)
Valuation Allowance, Amount	37.9	56.1
Continuing operations tax benefit	19.8	(2.7)	$ (27.2)
Deferred Tax Liabilities, Undistributed Foreign Earnings	75.9
Income Taxes Receivable	$ 1.7	$ 2.0
Foreign tax rate
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Effect of foreign tax rates / foreign exhchange	(5.00%)	13.00%	5.00%
Foreign Currency Gain (Loss)
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Effect of foreign tax rates / foreign exhchange	2.00%	(8.00%)	(6.00%)