Stock Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2019

Stock Benefit Plans

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

	December 31, 2019				December 31, 2018				December 31, 2017
	CEO		Employees		CEO		Employees		CEO		Employees
Risk-free interest rate	1.59	%	1.42	%	2.52	%	2.67	%	1.64	%	1.56	%
Expected life (in years)	3.67		3.67		3.85		3.68		3.85		3.85
Expected volatility	28.62	%	26.96	%	23.20	%	22.51	%	21.89	%	22.70	%
Expected dividend yield	6.47	%	6.12	%	4.67	%	4.54	%	4.22	%	4.42	%

Schedule of Share-based Compensation, Stock Options, Activity

		Weighted Avg.		Weighted Avg.
		Exercise Price		Remaining	Aggregate
		Per Share		Contractual	Intrinsic Value
(Amounts in thousands, expect per share and term data)	Shares	($)		Term	($)
Balance at December 31, 2018	5,380	$	50.60
Granted	1,971	$	56.15
Exercised	(441)	$	39.70
Canceled or exchanged	(50)	$	51.83
Forfeited	(452)	$	59.41
Expired	—	$	—
Balance at December 31, 2019	6,408	$	52.42	6.91	$	15,776
Vested and expected to vest at December 31, 2019	6,122	$	52.08	6.81	$	15,776
Options exercisable at December 31, 2019	3,066	$	46.59	4.64	$	15,776

Schedule of Share-based Payment Award, Stock Options, Weighted-Average Information

	Year Ended December 31,
(Amounts in thousands, expect per share data)	2019		2018		2017
Weighted average grant date fair value per share of options granted	$	6.38	$	8.01	$	6.26
Total intrinsic value of options exercised	$	7,130	$	31,822	$	52,955
Total fair value of vested options	$	10,253	$	8,446	$	8,436
Total cash received from the exercise of stock options	$	17,495	$	41,658	$	60,583

Schedule of Nonvested Share Activity

The following table summarizes stock, restricted stock and restricted stock unit activity for the year ended December 31, 2019:

			Weighted
			Average Grant
			Date Fair Value
			Per Share
(Amounts in thousands, except per share amounts)	Shares		($)
Non-vested balance at December 31, 2018	16	$	63.69
Granted	62	$	48.29
Vested	(16)	$	63.69
Forfeited	—	$	—
Canceled	—	$	—
Non-vested balance at December 31, 2019	62	$	48.29

Schedule of Share-based Payment Award, Other than Stock Options, Weighted-Average Information

	Year Ended December 31,
(Amounts in thousands, expect per share data)	2019		2018		2017
Weighted average grant date fair value per share of stock awards granted	$	48.29	$	63.80	$	61.74
Total grant date fair value of stock awards granted	$	3,007	$	4,185	$	750
Total fair value of vested stock awards	$	1,027	$	3,888	$	560

Schedule of stock-based compensation expense

	Year Ended December 31,
(Amounts in thousands)	2019		2018		2017
Long-Term Incentive Plan
Options and other	$	13,037	$	15,543	$	16,910
Performance awards		—		(62,512)		(39,935)
Employee Stock Purchase Plan		237		285		328
Total Stock-Based Compensation	$	13,274	$	(46,684)	$	(22,697)