Income Taxes - Schedule of Income Tax Rate Reconciliation (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract]
Tax at statutory U.S. tax rate	$ 13.9	$ 50.0
State income taxes, net of federal benefit	0.7	4.2
Net effect of international operations	(0.8)	(2.5)
Valuation allowances	(14.3)	(40.8)
Tax on unremitted earnings of foreign subsidiaries	3.1	0.0
U.S. tax on foreign earnings	(0.8)	0.0
Stock-based compensation	(1.6)	0.0
Uncertain tax positions	(0.1)	0.0
Goodwill impairment	0.0	(10.8)
Capital losses	0.0	0.0
Other	(0.2)	0.0
Income tax (provision) benefit	$ (0.1)	$ 0.1