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Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2019

Retirement Benefits [Abstract]

Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity

Summary of unvested RSUs under the Company’s share-based compensation plans for 2019, 2018, and 2017: 

			Year Ended December 31,
			2019																		2018																		2017
			Units						Weighted Average  Grant-Date Fair Value						Units						Weighted Average  Grant-Date Fair Value						Units						Weighted Average  Grant-Date Fair Value
Unvested balance at beginning of year			329,205						$	25.42					368,492						$	17.20					527,486						$	10.17
Granted			45,993						77.78						42,136						78.37						47,514						42.93
Forfeited			(22,934)						57.27						(1,080)						28.30						(3,508)						25.74
Vested			(235,409)						12.54						(80,343)						15.42						(203,000)						4.82
Unvested balance at end of year			116,855						$	65.73					329,205						$	25.42					368,492						$	17.20

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Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year.

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