Equity (Tables)

12 Months Ended

Dec. 31, 2012

Equity [Abstract]

Schedule Of Stock Options Activity

				Weighted
				Average
			Weighted	Remaining		Aggregate
			Average	Contractual		Intrinsic
			Exercise	Life		Value
	Shares		Price	(Years)		($ thousands)
Outstanding at December 31, 2009	7,755,254	$	7.67	7.48	$	15,920
Granted	342,250		12.68
Exercised	(2,133,806)		3.37
Forfeited or expired	(956,361)		11.56
Outstanding at December 31, 2010	5,007,337		9.10	6.36		47,009
Granted	468,000		19.81
Exercised	(1,738,741)		6.28
Forfeited or expired	(405,565)		10.46
Outstanding at December 31, 2011	3,331,031		11.91	6.35		18,468
Granted	208,400		16.84
Exercised	(613,691)		6.04
Forfeited or expired	(304,054)		17.55
Outstanding at December 31, 2012	2,621,686	$	13.03	5.55	$	11,373
Exercisable at December 31, 2012	1,992,151	$	12.36	4.75	$	10,000
Vested and expected to vest at December 31, 2012	2,485,086	$	12.78	5.37	$	11,330

Schedule of Option Pricing Model

	Year Ended December 31,
	2012	2011	2010
Expected volatility	50 - 70%	50 - 60%	60%
Dividend yield	-	-	-
Risk-free interest rate	0.62% - 1.20%	0.87% - 2.31%	1.64% - 2.27%
Expected life (in years)	4.00 - 4.27	4.35 - 4.89	5.66 - 6.49

Schedule of RSAs and RSUs

	Restricted Stock Awards			Restricted Stock Units
			Weighted			Weighted
			Average			Average
			Grant Date			Grant Date
	Shares		Fair Value	Units		Fair Value
Nonvested at December 31, 2009	1,322,240	$	3.04	-	$	-
Granted	637,557		12.10	116,400		12.99
Vested	(688,049)		3.93	-		-
Forfeited	(318,325)		2.77	-		-
Nonvested at December 31, 2010	953,423		8.54	116,400		12.99
Granted	118,520		19.10	651,791		24.89
Vested	(352,150)		6.19	(21,150)		17.25
Forfeited	(148,618)		9.67	(35,061)		15.41
Nonvested at December 31, 2011	571,175		11.87	711,980		23.43
Granted	18,813		16.48	1,010,559		18.92
Vested	(191,779)		9.22	(133,555)		23.25
Forfeited	(42,700)		13.25	(174,323)		20.64
Nonvested at December 31, 2012	355,509	$	13.37	1,414,661	$	20.61