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Long-term Equity-based Compensation Plans (Tables)

3 Months Ended

Mar. 31, 2015

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

The assumptions used in the Black-Scholes pricing model for Tandem Awards granted during the three months ended March 31, 2015 and 2014 were as follows:



	Three Months Ended
	Mar 31, 2015					Mar 31, 2014
Range of Valuation Assumptions
Expected Volatility	22.49	%	-	41.65	%	25.76	%	-	44.43	%
Risk-free Interest Rate	1.08		-	1.63		1.07		-	2.14
Expected Dividend Yield	2.62		-	2.62		2.60		-	2.60
Weighted-Average Expected Life in Years
Employee Grants	4		-	7		4		-	7
Director Grants	5.5					NA

Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]

Tandem Award activity for the three months ended March 31, 2015 is presented below.



	Shares Subject to Awards		Weighted- average Exercise Price Per Share ($)		Weighted- average Remaining Contractual Life (in Years)	Aggregate Intrinsic Value ($ in Millions)
Outstanding at Beginning of the Year	2,265,711		$	39.74
Granted	265,750		36.17
Exercised	(239,250	)	28.16
Forfeited or Expired	(427,024	)	46.23
Outstanding at March 31, 2015	1,865,187		$	39.23	5.08	$	5.5
Vested and Expected to Vest at March 31, 2015	1,821,284		$	39.34	5.00	$	5.3
Exercisable at March 31, 2015	1,295,183		$	40.96	3.38	$	3.4

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]

Information pertaining to Tandem Awards outstanding at March 31, 2015 is presented below.



					Outstanding				Exercisable
Range of Exercise Prices Per Share ($)					Shares Subject to Awards	Weighted- average Exercise Price Per Share ($)		Weighted- average Remaining Contractual Life (in Years)	Shares Subject to Tandem Awards	Weighted- average Exercise Price Per Share ($)
$	15.01	-	$	20.00	8,000	$	16.48	4.10	8,000	$	16.48
20.01		-	25.00		21,500	23.26		4.81	21,500	23.26
25.01		-	30.00		187,125	29.12		6.43	141,123	28.97
30.01		-	35.00		210,000	33.13		7.83	118,000	32.89
35.01		-	40.00		821,125	36.67		7.02	389,123	37.10
40.01		-	45.00		—	—		—	—	—
45.01		-	50.00		616,045	48.61		1.21	616,045	48.61
50.01		-	55.00		1,392	50.04		0.10	1,392	50.04
15.01		-	55.00		1,865,187	39.23		5.09	1,295,183	40.96

Schedule of Share-based Compensation, Nonemployee Director Deferred Stock Unit Award Plan, Activity [Table Text Block]

Activity related to DSU awards for the three months ended March 31, 2015 was as follows:

Time Vested Shares [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]

Activity related to nonvested time-based restricted stock and nonvested time-based RSUs for the three months ended March 31, 2015 was as follows:



	Time-based Restricted Stock Awards				Time-based RSU Awards
	Number of Shares		Weighted- average Grant-date Fair Value Per Share		Number of RSUs		Weighted- average Grant-date Fair Value Per RSU
Nonvested Balance at Beginning of the Year	53,095		$	32.42	30,024		$	36.60
Granted	—		—		47,375		36.17
Vested	—		—		—		—
Forfeited	(3,651	)	29.18		(800	)	36.40
Nonvested Balance at End of Period	49,444		32.66		76,599		36.34

Performance Shares [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]

Activity related to nonvested performance-based restricted stock and nonvested performance-based RSUs for the three months ended March 31, 2015 was as follows:



	Performance-based Restricted Stock Awards				Performance-based RSU Awards
	Number of Shares		Weighted- average Grant-date Fair Value Per Share		Number of RSUs		Weighted- average Grant-date Fair Value Per RSU
Nonvested Balance at Beginning of the Year	110,625		$	39.28	61,875		$	40.50
Granted	—		—		68,825		43.05
Vested	—		—		—		—
Forfeited	(59,225	)	36.81		(1,800	)	41.49
Nonvested Balance at End of Period	51,400		42.12		128,900		41.85

- Definition

Tabular disclosure of components of a stock option or other award plan under which equity-based compensation is awarded to employees, typically comprised of the amount of unearned compensation (deferred compensation cost), compensation expense, and changes in the quantity and fair value of the shares (or other type of equity) granted, exercised, forfeited, and issued and outstanding pertaining to that plan. Disclosure may also include nature and general terms of such arrangements that existed during the period and potential effects of those arrangements on shareholders, effect of compensation cost arising from equity-based payment arrangements on the income statement, method of estimating the fair value of the goods or services received, or the fair value of the equity instruments granted, during the period, cash flow effects resulting from equity-based payment arrangements and, for registrants that accelerate vesting of out of the money share options, reasons for the decision to accelerate.

+ References+ Details

Number of DSUs

Weighted-
Average
Grant-Date
Fair Value
Per DSU

Vested Balance at Beginning of the Year

Granted and Vested

Vested Balance at End of Period