Quarterly report pursuant to Section 13 or 15(d)

Recently Issued and/or Adopted Accounting Standards (Details)

v3.21.1
Recently Issued and/or Adopted Accounting Standards (Details) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Mar. 31, 2020
Jan. 01, 2020
Basis of Presentation and Significant Accounting Policies [Abstract]        
Available-for-sale securities, amortized cost $ 11,067,188 $ 14,043,175   $ 30,700,000
Available-for-sale securities, allowance for credit losses $ 18,170 $ 22,528 $ 41,390 $ 244,876