Authorized Shares Of Common And Preferred Stock And Stock-Based Compensation Plans (Tables)

12 Months Ended

Dec. 31, 2016

Authorized Shares Of Common And Preferred Stock And Stock-Based Compensation Plans [Abstract]

Schedule Of Stock Option Plans

	Number of shares under option		Weighted average exercise price per share
Outstanding at December 31, 2013	287,408	$	18.62
Exercised	(215,403)	$	18.77
Canceled	(42,530)	$	19.99
Granted	-	$	-
Outstanding at December 31, 2014	29,475	$	15.51
Exercised	(28,193)	$	15.52
Canceled	(1,282)	$	15.09
Granted	-	$	-
Outstanding at December 31, 2015	-	$	-
Exercised	-	$	-
Canceled	-	$	-
Granted	-	$	-
Outstanding at December 31, 2016	-	$	-
Options exercisable at December 31:
2014	29,475	$	15.51
2015	-	$	-
2016	-	$	-

Schedule Of Restricted Stock Plans

	RSUs
	Number of RSUs		Weighted average grant price per share
Outstanding at December 31, 2013	3,506,562	$	26.23
Granted	394,143	$	28.46
Earned	(822,269)	$	27.31
Canceled	(233,017)	$	27.04
Outstanding at December 31, 2014	2,845,419	$	26.90
Granted	951,265	$	31.39
Earned	(709,724)	$	28.60
Canceled	(200,219)	$	28.39
Outstanding at December 31, 2015	2,886,741	$	28.64
Granted	791,932	$	28.02
Earned	(676,322)	$	27.57
Canceled	(196,150)	$	28.73
Outstanding at December 31, 2016	2,806,201	$	28.76

Schedule Of Employee Stock Purchase Plan

	2016	2015	2014
Dividend expense yield	0.700%	0.625%	0.5%
Expected life	3 months	3 months	3 months
Expected volatility	22%	21%	27%
Risk-free interest rate	0.15%	0.02%	0.04%

Schedule Of Weighted Average Grant Date Fair Value Of Purchase Rights Granted Under Employee Stock Purchase Plan

	Number of Shares		Weighted average fair value per share
2014	1,121,709	$	6.05
2015	1,108,153	$	5.58
2016	1,217,829	$	5.37