Share-Based Payment Arrangements (Tables)

12 Months Ended

Dec. 31, 2019

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Summary of Option Activity

Options	Number of Shares			Weighted- Average Exercise Price ($)		Weighted- Average Remaining Contractual Term (Years)		Aggregate Intrinsic Value ($000)
Outstanding at January 1, 2019		46,685		$	31.88		2.6	$	164
Former MidSouth options converted at acquisition		20,530			46.76				—
Exercised/Released		(23,365	)		33.06				180
Cancelled/Forfeited		—			—				—
Expired		(15,305	)		45.85				6
Outstanding at December 31, 2019		28,545		$	34.11		2.2	$	296
Exercisable at December 31, 2019		28,545		$	34.11		2.2	$	296

Summary of Nonvested Restricted and Performance Shares

	Number of Shares			Weighted- Average Grant-Date Fair Value ($)
Nonvested at January 1, 2019		1,494,041		$	39.89
Granted		694,377			39.85
Vested		(525,166	)		38.20
Cancelled/Forfeited		(66,994	)		39.88
Nonvested at December 31, 2019		1,596,258		$	40.43