Stock-Based Compensation and Other Employee Benefit Plans (Schedule of Activity, Stock Options) (Details) - USD ($) $ / shares in Units, $ in Millions				3 Months Ended	9 Months Ended
		Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015	Sep. 30, 2016
Weighted Average Remaining Contractual Life and Aggregate Intrinsic Value
Options outstanding, vested, weighted average remaining contractual life (in years)		0 years	6 months 18 days
Options exercisable, weighted average remaining contractual life (in years)		0 years	6 months 18 days
Options outstanding, vested, aggregate intrinsic value (in dollars)	[1]	$ 0.0	$ 0.9		$ 0.0
Options exercisable, aggregate intrinsic value (in dollars)	[1]	$ 0.0	$ 0.9		$ 0.0
Common Stock [Member]
Stock Options
Options outstanding, vested, beginning balance (in shares)					202,700
Options exercisable, beginning balance (in shares)					202,700
Exercised (in shares)				0	(202,700)
Options outstanding, vested, ending balance (in shares)		0	202,700		0
Options exercisable, ending balance (in shares)		0	202,700		0
Per Share Weighted Average Exercise Price
Options outstanding, vested, per share weighted average exercise price, beginning balance (in dollars per share)					$ 13.06
Options exercisable, per share weighted average exercise price, beginning balance (in dollars per share)					13.06
Options outstanding, vested, per share weighted average exercise price, ending balance (in dollars per share)		$ 0.00	$ 13.06		0.00
Options exercisable, per share weighted average exercise price, ending balance (in dollars per share)		$ 0.00	$ 13.06		0.00
Common Stock [Member] | Stock Options [Member]
Per Share Weighted Average Exercise Price
Exercised (in dollars per share)					$ 13.06

[1] Amount represents the difference between the exercise price and the closing share price of the Company’s stock on the last trading day of the corresponding period, multiplied by the number of in-the-money options.