Share-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2016

Share-Based Compensation

Schedule of stock option activity

		Years Ended December 31,
		2016				2015				2014
		Shares	Weighted			Shares	Weighted			Shares	Weighted
		Under	Average			Under	Average			Under	Average
		Option	Exercise Price			Option	Exercise Price			Option	Exercise Price
Outstanding at beginning of year	$	6,200	$	42.85	$	12,700	$	42.85	$	20,200	$	41.64
Exercised		(6,000)		42.85		(6,500)		42.85		(7,500)		39.60
Forfeited		(200)		42.85		—		—		—		—
Outstanding at end of period		—		—		6,200		42.85		12,700		42.85
Exercisable at end of period	$	—	$	—	$	6,200	$	42.85	$	12,700	$	42.85

Schedule of restricted stock and performance-based restricted stock activity

	Years Ended December 31,
	2016			2015			2014
	Shares	Weighted		Shares	Weighted		Shares	Weighted
	Under	Average		Under	Average		Under	Average
	Restriction	Fair Value		Restriction	Fair Value		Restriction	Fair Value
Outstanding at beginning of year	112,024	$	54.44	176,116	$	46.38	211,234	$	43.51
Granted	46,556		56.09	46,943		61.57	50,781		53.94
Vested and unrestricted	(56,279)		53.43	(108,130)		44.51	(81,149)		43.80
Forfeited	(6,808)		50.02	(2,905)		49.94	(4,750)		44.46
Outstanding at end of period	95,493	$	55.86	112,024	$	54.44	176,116	$	46.38
	Years Ended December 31,
	2016			2015			2014
	Performance-based	Weighted		Performance-based	Weighted		Performance-based	Weighted
	Shares Under	Average		Shares Under	Average		Shares Under	Average
	Restriction	Fair Value		Restriction	Fair Value		Restriction	Fair Value
Outstanding at beginning of year	99,101	$	55.55	64,724	$	50.40	37,456	$	44.13
Granted	44,626		61.07	37,722		63.62	29,903		57.94
Vested and unrestricted	(15,289)		47.42	—		—	—		—
Forfeited	(33,828)		52.07	(3,345)		46.91	(2,635)		46.96
Outstanding at end of period	94,610	$	57.60	99,101	$	55.55	64,724	$	50.40