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Stock-Based Compensation Plans (Tables)

12 Months Ended

Dec. 31, 2019

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

Estimated Fair Value of Stock Options

The fair value of each stock option granted in 2019, 2018 and 2017, was estimated on the date of grant using the following weighted-average assumptions.

		Year Ended December 31,
		2019				2018				2017
Dividend yield			2.4	%			2.4	%			2.2	%
Volatility			23.3	%			25.4	%			29.6	%
Risk-free interest rate			2.5	%			2.9	%			1.8	%
Expected life			5.4 years				5.4 years				5.6 years
Weighted average grant date fair value		$	4.35			$	5.08			$	5.17

Option Activity under Company's Stock Option Plans

The following table presents option activity under the Company’s stock option plans as of and for the year ended December 31, 2019.

		Number of Stock Options Outstanding				Weighted Average Exercise Price				Weighted Average Remaining Contractual Term				Aggregate Intrinsic Value
		(In thousands)								(In years)				(In thousands)
Outstanding at January 1, 2019			532			$	16.73
Granted			2				23.12
Exercised			(161	)			13.78
Forfeited or expired			(14	)			19.00
Outstanding at December 31, 2019			359			$	17.99				6.05			$	1,587
Vested or expected to vest at December 31, 2019			359			$	17.99				6.05			$	1,587
Exercisable at December 31, 2019			212			$	15.58				4.76			$	1,364

Summary of Status of Company's Non-Vested Restricted Shares

The table below summarizes activity related to the Company’s non-vested RSAs and RSUs for the year ended December 31, 2019.

		Shares				Weighted Average Fair Value
		(In thousands)
Nonvested at January 1, 2019			624			$	21.56
Granted			217				20.76
Vested			(220	)			19.59
Forfeited			(180	)			23.75
Nonvested at December 31, 2019			441			$	21.25

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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.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
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Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.

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Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

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