Investment Securities - Schedule of Marketable Securities (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Marketable Securities [Abstract]
Proceeds	$ 52,420	$ 2,667	$ 5,503
Gross realized gains	1,471	35	178
Gross realized losses	$ (7)	$ (11)	$ (5)

The cash inflow associated with the aggregate amount received by the entity through sale or maturity of marketable securities (held-to-maturity or available-for-sale) during the period.

No definition available.

Name:	us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration