Goodwill and Other Intangible Assets - Summary of Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Gross carrying amount at beginning of year	$ 31,052	$ 21,898
Additions	288	9,154
Accumulated amortization	(22,665)	(20,133)
Balance at End of Year	$ 8,675	$ 10,919