Stock-Based Compensation Plans (Tables)

12 Months Ended

Dec. 31, 2011

Information with Respect to Stock Options Granted

Information with respect to stock options granted under the 2009 and 1994 Plan is as follows:

				Weighted					Weighted
				average					average
	2009 Plan			exercise price		1994 Plan			exercise price
	shares			per share		shares			per share
Options Outstanding, December 31, 2008		—			N/A		2,623,135		$	83.49
Exercised		—			—		(115,675	)		44.20
Granted		—			—		344,801			48.60
Forfeited		—			—		(16,007	)		98.83
Options Outstanding, December 31, 2009		—			—		2,836,254		$	80.76
Exercised		—			—		(729,381	)		57.87
Granted		126,484			74.20		—			—
Forfeited		—			—		(34,656	)		100.02
Options Outstanding, December 31, 2010		126,484		$	74.20		2,072,217		$	88.50
Exercised		(23,908	)		75.75		(930,391	)		82.43
Granted		144,827			115.83		—			—
Forfeited		—			—		(28,867	)		68.29
Options Outstanding, December 31, 2011		247,403		$	98.42		1,112,959		$	94.10
Options Exercisable:
December 31, 2009		—			N/A		2,127,829		$	81.90
December 31, 2010		3,417		$	74.20		1,730,978		$	93.60
December 31, 2011		30,771		$	81.54		1,012,304		$	98.62

Exercise Prices and Contractual Lives of Options Outstanding

The following summarizes the exercise prices and contractual lives of options outstanding as of December 31, 2011:

2009 Plan Number of Options		Range - Exercise Price	Weighted Average Remaining Contractual Term (in years)
	103,468	$70.00 - 79.99		8.1
	143,935	110.00 - 119.99		9.1
	247,403
1994 Plan Number of Options		Range - Exercise Price	Weighted Average Remaining Contractual Term (in years)
	2,059	$30.00 - 39.99		1.1
	251,611	40.00 - 49.99		3.4
	124,569	60.00 - 69.99		3.1
	730	70.00 - 79.99		3.5
	160,777	80.00 - 89.99		5.4
	254,061	90.00 - 99.99		4.1
	1,546	100.00 - 109.99		4.6
	4,122	110.00 - 119.99		5.5
	313,484	140.00 - 149.99		5.1
	1,112,959

Summary of Weighted Average Fair Value of Employee Stock Options and Associated Assumptions

The following table summarizes the weighted average fair value of employee stock options for the periods shown and the associated assumptions used to calculate the value:

	2011			2010			2009
Weighted average fair value per share	$	29.40		$	19.45		$	6.53
Life of options (in years)		7.0			7.0			7.0
Dividend yield		4.0	%		5.5	%		8.5	%
Volatility		35.00	%		43.00	%		36.57	%
Risk-free interest rate		3.04	%		3.15	%		2.17	%