Stock-Based And Long-Term Incentive Compensation (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Stock Based and Long-Term Compensation (Textual) [Abstract]
Shares available for future grants	5,877,000
Employee Stock Option [Member]
Stock Based and Long-Term Compensation (Textual) [Abstract]
Share-based payment vesting period, years	3 years
Share-based payment expiration period, years	10 years
Intrinsic value of options exercised	$ 0.0	$ 0.0	$ 0.3
Cash received from exercising options	0.0	0.1	0.5
Tax benefit from exercising stock options	0.0	$ 0.0	0.1
Unrecognized compensation expense related to non-vested options oustanding	3.3
Compensation expense expected to be recognizes in next year	2.2
Compensation expense expected to be recognized in 2 years	$ 1.1
Restricted Stock Units (RSUs) [Member]
Stock Based and Long-Term Compensation (Textual) [Abstract]
Share-based payment vesting period, years	3 years
Unrecognized compensation expense related to non-vested options oustanding	$ 21.0
Compensation expense expected to be recognizes in next year	13.7
Compensation expense expected to be recognized in 2 years	7.0
Compensation expense expected to be recognized in 3 years	$ 0.3
Resticted stock granted	2,030,896
Shares outstanding	3,422,436	3,192,000
Performance Share Units [Member]
Stock Based and Long-Term Compensation (Textual) [Abstract]
Shares outstanding	320,284
Performance period of PSU grant, years	3 years
Portion of equivalent value in common stock of company after meeting service requirements, at discretion of compensation committee	50.00%
Performance Share Units Outstanding, in next year	115,397
Performance Share Units Outstanding, in 2 years	97,044
Performance Share Units Outstanding, in 3 years	107,843
Supplemental Executive Retirement Plan [Member]
Stock Based and Long-Term Compensation (Textual) [Abstract]
Employers Contribution to be received by plan participants, Minimum	5.00%
Employers Contribution to be received by plan participants, Maximum	35.00%
Employers contribution	$ 1.2	$ 0.9	2.2
Distribution to select participants	$ 0.0	0.0	1.4
Other Pension Plan [Member]
Stock Based and Long-Term Compensation (Textual) [Abstract]
Maximum employee contribution to be matched by employer	4.00%
Maximum empoyee contribution	75.00%
Company contribution, percent	100.00%
Company discretionary contributions	$ 10.0	$ 8.4	$ 8.7
Non-Qualified Deferred Compensation Plans [Member]
Stock Based and Long-Term Compensation (Textual) [Abstract]
Maximum portion of base salary to defer under non-qualified deferred compensation plan	75.00%
Maximum portion of bonus to defer under non-qualified deferred compensation plan	100.00%
Non-employee cash deferred to non-qualified compensation plan	100.00%
Maximum of cash portion of PSU compensation to defer under non-qualified deferred compensation plan	100.00%