Stock-Based Compensation Plans Time Based Restricted Shares (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract]
Compensation expense for the year	$ 3.3	$ 4.9	$ 5.2
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	3 years
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]
Non-vested at January 1,	1,044,000	1,298,000	872,000
Non-vested at January 1,	$ 3.55	$ 3.11	$ 2.89
Granted	176,000	279,000	725,000
Granted	$ 3.19	$ 4.72	$ 3.26
Vested	(514,000)	(454,000)	(299,000)
Vested	$ 3.25	$ 3.03	$ 2.83
Forfeited	22,000	(79,000)	0
Forfeited	$ 3.19	$ 3.40	$ 0.00
Non-vested at December 31,	684,000	1,044,000	1,298,000
Non-vested at December 31,	$ 3.70	$ 3.55	$ 3.11
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract]
Compensation expense for the year	1.6	1.7	1.5
Tax benefit related to compensation expense	(0.6)	(0.6)	(0.6)
Grant date fair value of awards vested	1.7	1.4	0.8
Unrecognized Compensation	0.6
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	1 year
Stock Appreciation Rights (SARs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate intrinsic value, cash settled and other awards, exercisable	0.4
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]
Granted			531,000
Performance Based Cash Unit Award [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract]
Compensation expense for the year	$ 0.6	$ (0.2)	$ 4.4
Deferred Compensation, Share-based Payments [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Deferred Compensation Arrangement with Individual, Shares Issued	400,000	700,000