Nature of Operations and Summary of Significant Accounting Policies - Summary of Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Basic earnings per share
Net Income	$ 21,425	$ 23,071	$ 22,173	$ 20,422	$ 21,893	$ 20,312	$ 14,639	$ 11,655	$ 87,091	$ 68,499	$ 66,538
Weighted average common shares outstanding (in shares)	43,534,298	43,810,729	43,950,501	43,919,549	43,862,435	43,862,435	43,781,249	44,658,512	43,802,733	44,044,737	43,493,316
Basic Earnings Per Share (in USD per share)	$ 0.49	$ 0.53	$ 0.50	$ 0.46	$ 0.50	$ 0.46	$ 0.33	$ 0.26	$ 1.99	$ 1.56	$ 1.53
Diluted earnings per share
Net income available to common shareholders									$ 87,091	$ 68,499	$ 66,538
Effect of dilutive securities:
Weighted average common shares outstanding (in shares)	43,733,416	43,958,870	44,111,103	44,072,581	43,903,881	43,903,881	43,802,794	44,756,716	43,955,280	44,123,076	43,597,595
Diluted Earnings Per Share (in USD per share)	$ 0.49	$ 0.52	$ 0.50	$ 0.46	$ 0.50	$ 0.46	$ 0.33	$ 0.26	$ 1.98	$ 1.55	$ 1.53
Restricted stock
Effect of dilutive securities:
Effect of dilutive securities (in shares)									107,988	41,817	23,006
Stock options
Effect of dilutive securities:
Effect of dilutive securities (in shares)									44,559	36,522	81,273