Stock-Based Compensation Plans (Tables)

12 Months Ended

Dec. 31, 2019

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Option Pricing Assumptions and Estimated Fair Value

The following table presents the option pricing assumptions and the estimated fair value of the options using these assumptions for grants made for the year ended:

	December 31,
	2019	2018			2017
Weighted-average dividend yield	N/A	2.36		%	N/A
Weighted-average risk-free interest rate	N/A	2.38		%	N/A
Weighted-average expected volatility	N/A	22.80		%	N/A
Weighted-average expected life (in years)	N/A	5.3			N/A
Weighted-average fair value of options granted	N/A	$	7.78		N/A

Schedule of Stock Option Activity

Stock option activity for the year ended December 31, 2019 was as follows:

(Dollars in thousands, except per option data)	Number of Options		Weighted-Average Exercise Price per Option		Weighted-Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value
Options outstanding at January 1, 2019	27,352		$	22.53
Granted	—		—
Exercised	(13,745	)	21.39
Forfeited	—		—
Expired	—		—
Options outstanding at December 31, 2019	13,607		$	23.69	3.3	$	304
Options exercisable at December 31, 2019	11,757		$	22.21	2.8	$	280

A summary of the status of the Company’s nonvested stock options as of December 31, 2019 and changes during the year then ended was as follows:

	Options		Weighted-Average Grant Date Fair Value per Option
Nonvested at January 1, 2019	3,100		$	6.32
Granted	—		—
Vested	(1,250	)	6.09
Forfeited	—		—
Nonvested at December 31, 2019	1,850		$	6.48

Schedule of Compensation Expense

Compensation expense and the related tax benefit recognized in connection with the DCRP was as follows for the periods presented:

	For The Year Ended December 31,
(In thousands)	2019		2018		2017
Compensation expense	$	110	$	106	$	97
Related income tax benefit	24		23		21
Fair value of grants vested	102		105		90

Compensation expense and the related income tax benefit recognized in connection with the restricted stock units was as follows for the periods indicated:

	For The Year Ended December 31,
(In thousands)	2019		2018		2017
Compensation expense	$	389	$	263	$	124
Income tax benefit	84		57		27
Fair value of grants vested	302		149		—

Compensation expense and the related income tax benefit recognized in connection with the MSPP awards was as follows for the periods indicated:

	For The Year Ended December 31,
(In thousands)	2019		2018		2017
Compensation expense	$	95	$	104	$	97
Income tax benefit	20		22		21
Fair value of grants vested	75		130		91

Compensation expense and the related tax benefit for the LTIP's performance-based awards was as follows for the periods indicated:

	For The Year Ended December 31,
(In thousands)	2019		2018		2017
Compensation expense	$	532	$	291	$	370
Related income tax benefit	114		63		80
Fair value of grants vested	344		284		843

Compensation expense and the related income tax benefit recognized in connection with the restricted stock awards was as follows for the periods indicated:

	For The Year Ended December 31,
(In thousands)	2019		2018		2017
Compensation expense	$	751	$	916	$	762
Income tax benefit	161		197		164
Fair value of grants vested	780		931		702

Summary of Nonvested Share Awards Activity

Restricted stock award activity for the year ended December 31, 2019 is as follows:

(Dollars in thousands, except per share data)	Number of Shares		Weighted-Average Grant Date Fair Value per Share		Weighted-Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value		Unrecognized Compensation
Nonvested at January 1, 2019	22,781		$	38.21
Granted	16,347		44.30
Vested	(19,420	)	40.16
Forfeited	(421	)	27.20
Nonvested at December 31, 2019	19,287		$	41.66	1.6	$	888	$	492

DCRP award activity for the year ended December 31, 2019 was as follows:

(Dollars in thousands, except per award data)	Number of Deferred Stock Awards		Weighted-Average Grant Date Fair Value per Award		Weighted-Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value		Unrecognized Compensation
Nonvested at January 1, 2019	9,970		$	28.16
Granted	3,542		43.26
Vested	(2,861	)	35.74
Forfeited	—		—
Nonvested at December 31, 2019	10,651		$	31.14	10.3	$	491	$	255

LTIP performance-based award activity for the year ended December 31, 2019 was as follows:

(Dollars in thousands, except per share data)	Number of Shares		Weighted-Average Grant Date Fair Value per Share		Weighted-Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value		Unrecognized Compensation
Nonvested at January 1, 2019	26,377		$	44.28
Granted	14,186		43.98
Vested	(7,811	)	43.99
Forfeited	(4,987	)	43.99
Nonvested at December 31, 2019	27,765		$	44.26	1.6	$	1,279	$	455

MSPP award activity for the year ended December 31, 2019 was as follows:

(Dollars in thousands, except per share data)	Number of Shares		Weighted-Average Grant Date Fair Value per Share		Weighted-Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value		Unrecognized Compensation
Nonvested at January 1, 2019	13,013		$	14.35
Granted	7,741		11.01
Vested	(5,516	)	13.65
Forfeited	(223	)	14.23
Nonvested at December 31, 2019	15,015		$	12.89	0.7	$	219	$	57

Restricted stock unit activity for the year ended December 31, 2019 was as follows:

(Dollars in thousands, except per unit data)	Number of Units		Weighted-Average Grant Date Fair Value per Unit		Weighted-Average Remaining Contractual Term (Years)	Aggregate Intrinsic Value		Unrecognized Compensation
Nonvested at January 1, 2019	30,225		$	44.23
Granted	15,138		43.40
Vested	(6,854	)	44.12
Forfeited	(2,457	)	43.99
Nonvested at December 31, 2019	36,052		$	43.92	3.3	$	1,661	$	1,258