Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation and Other Benefit Plans - Summary of Activity for the Bank4Texas Warrants (Details)

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Stock-Based Compensation and Other Benefit Plans - Summary of Activity for the Bank4Texas Warrants (Details) - Bank4Texas Warrants
$ / shares in Units, $ in Thousands
12 Months Ended
Dec. 31, 2020
USD ($)
$ / shares
shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]  
Warrants, Outstanding | shares 9,872
Warrants, Exercised | shares (5,514)
Warrants, Forfeited | shares (4,358) [1]
Weighted Average Exercise Price, Outstanding $ 10.50
Weighted Average Exercise Price, Exercised 10.50
Weighted Average Exercise Price, Outstanding 10.50
Weighted Average Exercise Price, Vested and exercisable $ 10.50
Aggregate Intrinsic Value, Exercised | $ $ 35
Weighted Average Remaining Contractual Life (Years), Outstanding 0 years
Weighted Average Remaining Contractual Life (Years), Vested and Exercisable 0 years
[1] Forfeitures are accounted for in the period they occur