Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2014

Stock-Based Compensation [Abstract]

Schedule Of Employee Stock-Based Compensation Costs

	For the three months ended
	March 31,
	2014		2013
	(in thousands)
Stock-based compensation cost – expensed	$	4,490	$	2,994
Stock-based compensation cost – capitalized	$	4,540	$	2,862

Summary Of Stock Option Activity

		Weighted
		Average
	Number	Exercise
	of Options	Price
Outstanding at December 31, 2013	3,312,693	$	35.70
Granted	-		-
Exercised	(177,504)		32.91
Forfeited or expired	(50,031)		38.83
Outstanding at March 31, 2014	3,085,158		35.81
Exercisable at March 31, 2014	1,927,252	$	35.13

Summary Of Restricted Stock Activity

		Weighted
		Average
	Number	Grant Date
	of Shares	Fair Value
Unvested shares at December 31, 2013	1,770,922	$	37.55
Granted	3,440		43.01
Vested	(4,147)		36.69
Forfeited	(42,236)		38.12
Unvested shares at March 31, 2014	1,727,979	$	37.55

Summary Of Performance Unit Activity

		Weighted
		Average
	Number	Grant Date
	of Units	Fair Value
Unvested units at December 31, 2013	-	$	-
Granted	358,750		40.44
Vested	-		-
Forfeited	-		-
Unvested units at March 31, 2014	358,750	$	40.44