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Shareholders' Equity and Stock Options (Tables)

12 Months Ended

Dec. 31, 2012

Shareholders' Equity and Stock Options [Abstract]

Summary of stock units and stock options outstanding under the Comprehensive Plan

		December 31,
		2012					2011					2010
Common stock units related to deferred compensation for Directors				111,928					113,502					106,845
Common stock units related to deferred compensation for employees				116,174					115,087					195,088
Stock options				1,882,939					2,600,583					2,773,115
Restricted common stock units related to incentive compensation				1,423,611					1,135,840					1,106,166
Total				3,534,652					3,965,012					4,181,214

Summary of changes in outstanding options

		Weighted Average Option Price per Share					Range of Option Prices per Share					Options
												Outstanding					Vested and Exercisable
December 31, 2011		$15.13						$	6.91-$21.64					2,600,583					1,873,149
Granted		$17.34						$	17.32-$18.20					296,188					-
Vested		$13.81						$	6.91-$17.71					-					302,386
Exercised		$11.77						$	6.91-$19.16					(389,089	)				(389,089	)
Forfeited		$17.01						$	13.83-$20.80					(42,193	)				(42,193	)
Expired		$19.67						$	18.76-$21.64					(582,550	)				(582,550	)
December 31, 2012		$14.73						$	6.91-$20.23					1,882,939					1,161,703

Summary of options outstanding segregated by ranges of exercise prices

							Total Outstanding Options															Vested and Exercisable Options
		Range of Option Prices per Share					Options					Weighted Average Option Price per Share					Weighted Average Remaining Term					Options					Weighted Average Option Price per Share					Weighted Average Remaining Term
			$	6.91-$  9.04					415,346				$	7.95					3.1 years					338,572				$	8.19					3.0 years
			$	13.83-$16.81					687,185				$	15.14					3.0 years					538,409				$	15.44					2.7 years
			$	17.01-$20.23					780,408				$	17.97					4.5 years					284,722				$	19.31					2.2 years
Total			$	6.91-$20.23					1,882,939				$	14.73					3.6 years					1,161,703				$	14.28					2.7 years

Summary of changes in outstanding restricted common stock units

		Total Outstanding Units										Vested Units
		Units					Weighted Average Grant Date Fair Value per Unit					Units					Weighted Average Grant Date Fair Value per Unit
December 31, 2011				1,135,840				$	14.07					189,228				$	15.35
Granted (1)				460,178				$	18.17					-					-
Vested				-					-					264,272				$	9.42
Forfeited				(30,314	)			$	12.29					-					-
Distributed (2)				(142,093	)			$	9.15					(142,093	)			$	9.15
December 31, 2012				1,423,611				$	15.93					311,407				$	13.15

(1) Includes dividends reinvested into additional restricted common stock units.

(2) Includes distributed units which were utilized to satisfy withholding taxes due on the distribution.

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Share based compensation arrangement by share based payment awards equity instruments outstanding.

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Share based compensation stock option information, including the total outstanding, vested and exercisable number of options, as well as the weighted average option price per share and the weighted average remaining term, segregated by ranges of exercise prices.

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Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

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Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

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