Other Employee Benefits (Tables)

12 Months Ended

Dec. 31, 2018

Postemployment Benefits [Abstract]

Schedule of shares purchased in open market for employees

Shares purchased in the open market for issuance to employees pursuant to the plan for the years ended December 31, 2016, 2017 and 2018 were as follows:

Purchase Date	Shares	Common Stock Fair Value		Purchase Price		Compensation Expense
March 31, 2016	4,617	$	20.63	$	17.54	$	14,287
June 30, 2016	3,617	$	28.10	$	23.89	$	15,228
September 30, 2016	4,991	$	19.81	$	16.84	$	14,823
December 31, 2016	3,717	$	24.80	$	21.08	$	13,827
Total/Weighted Average	16,942	$	22.90	$	19.46	$	58,165
March 31, 2017	4,161	$	22.90	$	19.47	$	14,293
June 30, 2017	3,535	$	23.65	$	20.10	$	12,540
September 30, 2017	4,613	$	21.15	$	17.98	$	14,623
December 31, 2017	3,065	$	25.80	$	21.93	$	11,862
Total/Weighted Average	15,374	$	23.13	$	19.66	$	53,318
March 31, 2018	1,931	$	42.15	$	35.83	$	12,209
June 30, 2018	1,661	$	43.15	$	36.68	$	10,751
September 30, 2018	2,779	$	32.17	$	27.34	$	13,410
December 31, 2018	2,475	$	28.46	$	24.19	$	10,566
Total/Weighted Average	8,846	$	35.37	$	30.17	$	46,936