Condensed Statements of Shareholders' Equity - USD ($) shares in Millions, $ in Millions	Total	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Loss	Retained Earnings
Balance (in shares) at Dec. 31, 2014		77.4
Balance at Dec. 31, 2014	$ 1,013.3	$ 77.4	$ 788.3	$ (443.1)	$ 590.7
Net (loss) income	13.1	0.0	0.0	0.0	13.1
Other comprehensive income	3.4	0.0	0.0	3.4	0.0
Dividends paid:
Common stock ($0.20 per share)	$ (15.5)	$ 0.0	0.0	0.0	(15.5)
Common stock issued for:
Stock options exercised (in shares)	0.1	0.1
Stock options exercised	$ 2.8	$ 0.1	2.7	0.0	0.0
Other Transactions (in shares)		0.0
Other Transactions	(0.2)	$ 0.0	(0.2)	0.0	0.0
Stock-based compensation	1.3	$ 0.0	1.3	0.0	0.0
Balance (in shares) at Mar. 31, 2015		77.5
Balance at Mar. 31, 2015	1,018.2	$ 77.5	792.1	(439.7)	588.3
Balance (in shares) at Dec. 31, 2015		165.1
Balance at Dec. 31, 2015	2,418.8	$ 165.1	2,236.4	(492.5)	509.8
Net (loss) income	(37.9)	0.0	0.0	0.0	(37.9)
Other comprehensive income	22.3	0.0	0.0	22.3	0.0
Dividends paid:
Common stock ($0.20 per share)	(33.0)	$ 0.0	0.0	0.0	(33.0)
Common stock issued for:
Other Transactions (in shares)		0.1
Other Transactions	1.0	$ 0.1	0.9	0.0	0.0
Stock-based compensation	1.6	$ 0.0	1.6	0.0	0.0
Balance (in shares) at Mar. 31, 2016		165.2
Balance at Mar. 31, 2016	$ 2,372.8	$ 165.2	$ 2,238.9	$ (470.2)	$ 438.9