Employee Benefit and Deferred Compensation Plans (Tables)

6 Months Ended

Jun. 30, 2015

Compensation and Retirement Disclosure [Abstract]

Plan expense for non-contributory benefit pension plan and post-retirement health and life plans

The plan expense for the Company-sponsored noncontributory defined benefit pension plan (“Pension Benefits”) and post-retirement health and life plans (“Other Benefits”) for the periods presented was as follows:

	Pension Benefits						Other Benefits
	Three Months Ended						Three Months Ended
	June 30,						June 30,
	2015			2014			2015		2014
Service cost	$	—		$	—		$	4	$	6
Interest cost	274			318			15		23
Expected return on plan assets	(510		)	(539		)	—		—
Prior service cost recognized	—			—			—		—
Recognized actuarial loss	83			46			26		27
Net periodic benefit cost (return)	$	(153	)	$	(175	)	$	45	$	56

	Pension Benefits						Other Benefits
	Six Months Ended						Six Months Ended
	June 30,						June 30,
	2015			2014			2015		2014
Service cost	$	—		$	—		$	8	$	12
Interest cost	545			636			30		46
Expected return on plan assets	(1,021		)	(1,078		)	—		—
Prior service cost recognized	—			—			—		—
Recognized actuarial loss	156			91			46		54
Net periodic benefit (return) cost	$	(320	)	$	(351	)	$	84	$	112

Schedule of other share-based compensation activity

The following table summarizes the changes in restricted stock as of and for the six months ended June 30, 2015:

	Performance-Based Restricted Stock	Weighted Average Grant-Date Fair Value		Time- Based Restricted Stock		Weighted Average Grant-Date Fair Value
Nonvested at beginning of period	—	$	—	38,336		$	27.26
Awarded	81,750	28.93		33,588		29.40
Vested	—	—		(11,486	)	27.86
Cancelled	—	—		—		—
Nonvested at end of period	81,750	$	28.93	60,438		$	28.65

The following table summarizes the changes in stock options as of and for the six months ended June 30, 2015:

	Shares		Weighted Average Exercise Price
Options outstanding at beginning of period	830,950		$	18.70
Granted	—		—
Exercised	(109,137	)	19.57
Forfeited	(7,500	)	30.63
Options outstanding at end of period	714,313		$	18.45