Stock-Based Compensation and Other Employee Benefit Plans (Schedule of Activity, Restricted Shares) (Details) - Restricted Shares [Member] - Common Stock [Member]	9 Months Ended
	Sep. 30, 2015 $ / shares shares
Restricted Shares
Non-vested restricted shares, beginning balance (in shares) | shares	1,414,645
Granted (in shares) | shares	87,690
Vested (in shares) | shares	(199,235)
Canceled/forfeited (in shares) | shares	(17,774)
Non-vested restricted shares, ending balance (in shares) | shares	1,285,326
Per Share Weighted Average Grant Date Fair Value
Non-vested restricted shares, per share weighted average grant date fair value, beginning balance (in dollars per share)	$ 25.32
Granted (in dollars per share)	18.40
Vested (in dollars per share)	18.22
Canceled/forfeited (in dollars per share)	28.42
Non-vested restricted shares, per share weighted average grant date fair value, ending balance (in dollars per share)	$ 25.90