Stock-Based Compensation Arrangements (Tables)

12 Months Ended

Dec. 31, 2012

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule Of Stock Options Roll Forward Table [Text Block]

			Weighted	Weighted
	Number of		Average	Average
	Shares		Exercise	Contractual		Aggregate
	Underlying		Price per	Life in		Intrinsic
	Options		Share	Years		Value
Balance outstanding January 1, 2012	299	$	8.95
Exercised	(1)		6.73
Expired	(110)		12.04
Balance outstanding - December 31, 2012	188	$	6.72	5.5	$	85
Currently exercisable - December 31, 2012	188	$	6.72	5.5	$	85

Schedule Of Share Based Compensation Shares Authorized Under Stock Option Plans By Exercise Price Range [Text Block]

	Options Outstanding				Options Exercisable
Range of Exercise Prices	Number of Options Outstanding	Weighted Average Remaining Contractual Life		Weighted Average Exercise Price Per Share	Number Exercisable		Weighted Average Exercise Price Per Share
Less than $5.00	61	6.0	$	3.78	61	$	3.78
$5.00 - $8.00	36	5.8		5.25	36		5.25
Greater than $8.00	91	5.0		9.23	91		9.23
Total	188	5.5	$	6.72	188	$	6.72

Schedule Of Unvested Restricted Stock Units Roll Forward Table [Text Block]

				Weighted
				Average Grant
				Date Fair
		Number of		Value per
		Shares		Share
Balance outstanding - January 1, 2012		830	$	10.13
Granted		458		9.09
Vested		(452)		9.28
Forfeited		(82)		10.34
Balance outstanding - December 31, 2012		754	$	10.11
Total grant date fair value of shares vesting during the period	$	4,199

Schedule Of Noncash Stockbased Compensation General And Administrative Table [Text Block]

		Year Ended
		December 31,
	2012		2011		2010
G&A Expenses	$	4,641	$	2,988	$	3,191
Capitalized G&A		1,634		1,051		988
Total non-cash stock-based compensation	$	6,275	$	4,039	$	4,179

Schedule Of Nonvested Performance Based Units Activity [Table Text Block]

			Weighted
			Average Grant
			Date Fair
	Number of		Value per
	Shares		Share
Granted	422		16.72
Forfeited	(65)		16.72
Balance outstanding - December 31, 2012	357	$	16.72