Schedule Of Restricted Stock Award and Restricted Stock Unit Activity (Details) (USD $)	3 Months Ended				6 Months Ended
	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014		Jun. 30, 2013
Restricted Stock Awards [Member]
Schedule of Restricted Stock Award and Restricted Stock Unit Activity [Line Items]
Nonvested beginning balance	58,037		327,503		210,490		355,509
Granted	9,973		21,590		9,973		21,590
Vested	(48,037)	[1]	(61,006)	[1]	(63,435)	[1]	(78,212)	[1]
Forfeited or expired	(5,000)				(142,055)		(10,800)
Nonvested ending balance	14,973		288,087		14,973		288,087
Weighted average grant date fair value beginning balance	$ 14.89		$ 13.22		$ 13.43		$ 13.37
Weighted average grant date fair value of granted	$ 15.04		$ 16.56		$ 15.04		$ 16.56
Weighted average grant date fair value of vested	$ 14.50	[1]	$ 12.68	[1]	$ 15.03	[1]	$ 14.57	[1]
Weighted average grant date fair value of forfeited or expired	$ 16.75				$ 12.60		$ 12.51
Weighted average grant date fair value ending balance	$ 15.61		$ 13.32		$ 15.61		$ 13.32
Restricted Stock Units [Member]
Schedule of Restricted Stock Award and Restricted Stock Unit Activity [Line Items]
Nonvested beginning balance	2,613,554		2,449,544		1,965,667		1,414,661
Granted	272,516		157,097		1,621,493		1,563,114
Vested	(79,325)	[2]	(92,297)	[2]	(487,889)	[2]	(286,984)	[2]
Forfeited or expired	(429,524)		(58,330)		(722,050)		(234,777)
Nonvested ending balance	2,377,221		2,456,014		2,377,221		2,456,014
Weighted average grant date fair value beginning balance	$ 16.17		$ 17.06		$ 16.50		$ 20.61
Weighted average grant date fair value of granted	$ 15.27		$ 15.88		$ 16.24		$ 15.04
Weighted average grant date fair value of vested	$ 21.46	[2]	$ 25.35	[2]	$ 17.80	[2]	$ 22.53	[2]
Weighted average grant date fair value of forfeited or expired	$ 15.90		$ 16.89		$ 16.89		$ 22.27
Weighted average grant date fair value ending balance	$ 15.93		$ 16.72		$ 15.93		$ 16.72

[1] The RSAs vested during the three and six months ended June 30, 2014 and 2013 consisted entirely of time-based awards.

[2] The RSUs vested during the three months ended June 30, 2014 and 2013 consisted entirely of time-based awards. The RSUs vested during the six months ended June 30, 2014 consisted of 456,943 of time-based awards and 30,946 of performance-based awards. The RSUs vested during the six months ended June 30, 2013 consisted of 234,696 of time-based awards and 52,288 of performance-based awards.