Share-Based Payment Arrangements (Tables)

9 Months Ended

Sep. 30, 2019

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Summary of Option Activity

						Weighted
				Weighted		Average
				Average		Remaining		Aggregate
	Number of			Exercise		Contractual		Intrinsic
Options	Shares			Price		Term (Years)		Value ($000)
Outstanding at January 1, 2019		46,865		$	31.88		2.6	$	164
Former MidSouth options converted at acquisition		20,530			46.76				—
Exercised/Released		(18,969	)		31.54				172
Cancelled/Forfeited		—			—				—
Expired		—			—				—
Outstanding at September 30, 2019		48,426		$	38.32		1.5	$	174
Exercisable at September 30, 2019		48,426		$	38.32		1.5	$	174

Summary of Nonvested Restricted and Performance Shares

				Weighted
				Average
	Number of			Grant Date
	Shares			Fair Value
Nonvested at January 1, 2019		1,494,041		$	39.89
Granted		102,221			35.74
Vested		(35,353	)		40.96
Forfeited		(53,525	)		39.22
Nonvested at September 30, 2019		1,507,384		$	39.60