Employee Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2011

Employee Benefit Plans [Abstract]

Schedule Of Employee Option Plan

	Nine Months Ended September 30, 2011
				Weighted Average
	Options			Exercise Price
Outstanding at beginning of period		1,272,739		$	38.77
Granted		494,885			61.51
Exercised		(140,792	)		37.77
Forfeited		(44,449	)		51.83
Expired		(1,198	)		43.00
Outstanding at end of period		1,581,185		$	45.61

Schedule Of Assumptions Used In The Option-Pricing Model

	Options Granted During
	the Nine Months Ended
	September 30, 2011
Expected term of option	5.48 years
Weighted average risk-free interest rate		2.33	%
Weighted average expected volatility		31.51	%
Dividend yield		1.00	%
Weighted average fair value on grant date	$	18.27

Schedule Of Restricted Stock Units Award Activity

	Nine Months Ended September 30, 2011
				Weighted Average
				Grant Date Fair
	RSUs			Value
Outstanding RSUs at beginning of period		851,078		$	39.88
RSUs granted		47,198			58.96
Performance-based RSUs granted		139,210			61.51
RSUs forfeited		(38,643	)		34.31
RSUs fully vested		(338,636	)		37.48
Outstanding RSUs at end of period		660,207		$	47.01

Schedule Of Long-Term Incentive Plan Awards

	Nine Months Ended September 30, 2011
				Weighted Average
				Grant Date Fair
	LTIP			Value
Outstanding LTIP awards at beginning of period		773,411		$	41.74
Additional LTIP awards granted due to the achievement of 2008 — 2010 performance criteria		212,938			43.27
LTIP forfeited		(19,750	)		41.39
LTIP awards vested		(642,563	)		43.25
Outstanding LTIP awards at end of period		324,036		$	39.78

Schedule Of Stock Related Compensation Expense Relating To The Stock Options, RSUs, LTIP And Cash Equivalent Awards

	For the Three Months Ended				For the Nine Months Ended
	September 30,				September 30,
	2011		2010		2011		2010
Stock Options	$	967	$	706	$	3,143	$	2,256
RSUs		2,698		3,174		10,227		10,215
LTIP		1,140		3,843		3,547		12,706
Cash-equivalent stock awards		3,048		4,767		11,623		10,088
Total	$	7,853	$	12,490	$	28,540	$	35,265