Stock-Based Compensation and Other Employee Benefit Plans (Schedule of Activity, Restricted Shares) (Details)	3 Months Ended
	Mar. 31, 2016 $ / shares shares
Restricted Shares [Member]
Restricted Shares
Non-vested restricted shares, ending balance (in shares)	1,952,832
Restricted Shares [Member] | Common Stock [Member]
Restricted Shares
Non-vested restricted shares, beginning balance (in shares)	1,630,232	[1]
Granted (in shares)	421,037
Vested (in shares)	(14,937)
Canceled/forfeited (in shares)	(35,250)
Non-vested restricted shares, ending balance (in shares)	2,001,082	[1]
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) | $ / shares	$ 22.94
Granted (in dollars per share) | $ / shares	12.81
Vested (in dollars per share) | $ / shares	13.26
Canceled/forfeited (in dollars per share) | $ / shares	24.57
Non-vested restricted shares, per share weighted average grant date fair value, ending balance (in dollars per share) | $ / shares	$ 20.85
Restricted Stock Units [Member]
Restricted Shares
Non-vested restricted shares, beginning balance (in shares)	32,250	[1]
Non-vested restricted shares, ending balance (in shares)	48,250	[1]

[1] Includes 48,250 and 32,250 restricted stock units as of March 31, 2016 and December 31, 2015, respectively.