Fair Value Measurements - Summary of Carrying Values, Estimated Fair Values and Fair Value Measurement Levels of Financial Instruments (Details) - Fair Value, Measurements, Nonrecurring - USD ($) $ in Thousands		Sep. 30, 2020	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Certain impaired loans	[1]	$ 33,324	$ 42,767
Other assets	[2]	4,162	1,481
Total		37,486	44,248
Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Certain impaired loans	[1]	33,324	42,767
Other assets	[2]	4,162	1,481
Total		$ 37,486	$ 44,248

[1] Represents the fair value of impaired loans, based on the value of the collateral.

[2] Represents the fair value of repossessed assets, based on the appraised value of the collateral subsequent to its initial classification as repossessed assets and equity securities without readily determinable fair values.  These equity securities are classified as Level 3 due to the infrequency of the observable prices and/or the restrictions on the shares.