Consolidated Statements of Shareholders' Equity Statement - USD ($) $ in Millions	Total	Common Stock [Member]	Capital In Excess of Par Value [Member]	Retained Deficit [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Noncontrolling Interest [Member]
Balance (in shares) at Dec. 31, 2012		21,181,338
Balance at Dec. 31, 2012	$ 179.2	$ 0.2	$ 200.5	$ (21.2)	$ (0.8)	$ 0.5
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Capital contribution (in shares)		30,884,083
Capital contribution	290.6	$ 0.3	290.3
Repurchase of common stock (in shares)		(69,945)
Repurchase of common stock	(0.7)		(0.7)
Stock-based compensation (in shares)		106,300
Stock-based compensation	4.5		4.5
Net loss	(24.7)			(24.6)		(0.1)
Other comprehensive income (loss), net of tax	1.2				1.2
Balance at Dec. 31, 2013	450.1	$ 0.5	494.6	(45.8)	0.4	0.4
Balance (in shares) at Dec. 31, 2013		52,101,776
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Purchase of noncontrolling interest	(1.9)		(1.6)			(0.3)
Capital contribution (in shares)		182,305
Capital contribution	1.8	$ 0.0	1.8
Stock-based compensation (in shares)		2,019
Stock-based compensation	4.8		4.8
Net loss	(14.9)			(14.8)		(0.1)
Other comprehensive income (loss), net of tax	(54.5)				(54.5)
Balance at Dec. 31, 2014	$ 385.4	$ 0.5	499.6	(60.6)	(54.1)	0.0
Balance (in shares) at Dec. 31, 2014	52,286,100	52,286,100
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Capital contribution (in shares)		14,703,931
Capital contribution	$ 294.0	$ 0.2	293.8
Initial public offering issuance costs	(21.3)		(21.3)
Dividends paid	(144.6)		(144.6)
Stock-based compensation (in shares)		306,647
Stock-based compensation	21.2		21.2
Net loss	(38.8)			(38.8)		0.0
Other comprehensive income (loss), net of tax	(55.0)				(55.0)
Balance at Dec. 31, 2015	$ 440.9	$ 0.7	$ 648.7	$ (99.4)	$ (109.1)	$ 0.0
Balance (in shares) at Dec. 31, 2015	67,296,678	67,296,678