Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2012

The following table includes summary information for stock options as of December 31, 2012:


	Number of Options			Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Life (years)
Outstanding at January 1, 2012		1,151,567		$	89.93
Granted		71,686		$	69.12
Exercised		(188,631	)	$	48.06
Terminated		(6,665	)	$	100.73
Outstanding at December 31, 2012		1,027,957		$	96.10		3.4
Exercisable at December 31, 2012		854,178		$	99.52		2.8

Summarizes Information for Incentive Stock Awards and Restricted Stock Awards

The following table summarizes information for incentive stock awards and restricted stock awards as of December 31, 2012:


	Incentive Stock					Restricted Stock
	Number of Awards			Weighted- Average Grant-Date Fair Value		Number of Awards			Weighted- Average Grant-Date Fair Value
January 1, 2012		31,700		$	81.04		305,088		$	95.72
Awarded		12,702		$	81.41		58,918		$	69.12
Distributed		(15,520	)	$	80.55		(119,328	)	$	111.92
Forfeited		(1,155	)	$	82.49		(6,084	)	$	90.06
December 31, 2012		27,727		$	81.42		238,594		$	81.19

Schedule of Stock-Based Compensation Expense

The following table summarizes stock-based compensation expense for the years ended December 31, 2012, 2011 and 2010, unrecognized compensation cost for nonvested awards at December 31, 2012 and the weighted-average period over which unrecognized compensation cost is expected to be recognized:


(add 000, except year data)	Stock Options		Restricted Stock Awards		Incentive Compensation Awards		Directors’ Awards		Total
Stock-based compensation expense recognized for years ended December 31:
2012	$	1,835	$	4,980	$	237	$	729	$	7,781
2011	$	2,602	$	7,929	$	272	$	719	$	11,522
2010	$	3,406	$	10,368	$	261	$	640	$	14,675
Unrecognized compensation cost at December 31, 2012:	$	1,473	$	4,400	$	51	$	—	$	5,924
Weighted-average period over which unrecognized compensation cost to be recognized:		1.9 years		2.1 years		1.5 years		—

Expected Stock-Based Compensation Expense in Future Periods for Outstanding Awards

The following presents expected stock-based compensation expense in future periods for outstanding awards as of December 31, 2012:


(add 000)
2013	$	3,199
2014		1,975
2015		720
2016		30
Total	$	5,924