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Shareholders' Equity and Common Stock Equivalents (Tables)

12 Months Ended

Dec. 31, 2016

Shareholders Equity And Stock Options [Abstract]

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

As further described in the paragraphs below, outstanding stock units and stock options under the Comprehensive Plan were as follows:

			December 31,
			2016						2015						2014
Common stock units related to deferred compensation for Directors			74,058						85,200						87,993
Common stock units related to deferred compensation for employees			51,502						55,443						69,598
Stock options			747,032						669,693						634,437
Restricted common stock units related to incentive compensation			1,419,268						1,442,325						1,590,138
Total			2,291,860						2,252,661						2,382,166

Summary of changes in outstanding options

Changes in outstanding options were as follows:

		Weighted Average				Range of		Options
		Option Price				Option Prices						Vested and
		per Share				per Share		Outstanding				Exercisable
December 31, 2015			$24.00			$  6.91-$33.41			669,693				281,632
Granted			$31.13			$31.01-$36.04			307,176				-
Vested			$22.73			$13.83-$36.04			-				137,763
Exercised			$17.02			$  6.91-$33.41			(146,278)				(146,278)
Forfeited			$27.53			$17.32-$32.35			(83,559)				-
Expired			-			-			-				-
December 31, 2016			$27.67			$13.83-$36.04			747,032				273,117

Summary of options outstanding segregated by ranges of exercise prices

Option information segregated by ranges of exercise prices was as follows:

December 31, 2016

Total Outstanding Options

Vested and Exercisable Options

Weighted

Weighted

Weighted

Weighted

Range of

Average

Average

Average

Average

Option Prices

Option Price

Remaining

Option Price

Remaining

per Share

Options

per Share

Term

Options

per Share

Term

$13.83-$20.75

176,688

$18.57

2.3 years

157,029

$18.32

2.3 years

$28.88-$31.13

450,674

$29.91

8.2 years

87,832

$27.50

6.2 years

$32.35-$36.04

119,670

$32.67

8.3 years

28,256

$32.39

8.2 years

Total

$13.83-$36.04

747,032

$27.67

6.9 years

273,117

$22.73

4.1 years

Summary of changes in outstanding restricted common stock units

Changes in outstanding restricted common stock units were as follows:

		Total Outstanding Units								Vested Units
						Weighted Average								Weighted Average
						Grant Date Fair								Grant Date Fair
			Units			Value per Unit					Units			Value per Unit
December 31, 2015			1,442,325				$24.29				849,912				$15.51
Granted (1)			370,175				$31.75				-				-
Vested			-				-				262,074				$22.92
Forfeited			(49,310)				$26.01				-				-
Distributed (2)			(343,922)				$18.28				(343,922)				$18.28
December 31, 2016			1,419,268				$27.63				768,064				$16.80

(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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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
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
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+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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-Section 50
-Paragraph 2
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