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Investments (Tables)
12 Months Ended
Dec. 31, 2021
Investments, Debt and Equity Securities [Abstract]  
Cost or Amortized Cost and Fair Value of Securities Available for Sale
The following table provides the amortized cost and fair value of available-for-sale debt securities as of the dates presented (in thousands):
December 31, 2021
Amortized
Cost
Allowance for Expected Credit LossesGross
Unrealized
Gains
Gross
Unrealized
Losses
Fair Value
Debt Securities:
U.S. government obligations and agencies$27,076 $— $64 $(334)$26,806 
Corporate bonds687,058 (371)843 (13,725)673,805 
Mortgage-backed and asset-backed securities322,844 — 194 (6,920)316,118 
Municipal bonds14,925 (1)— (350)14,574 
Redeemable preferred stock9,289 (117)28 (48)9,152 
Total$1,061,192 $(489)$1,129 $(21,377)$1,040,455 
December 31, 2020
Amortized
Cost
Allowance for Expected Credit LossesGross
Unrealized
Gains
Gross
Unrealized
Losses
Fair Value
Debt Securities:
U.S. government obligations and agencies$59,529 $— $157 $(55)$59,631 
Corporate bonds416,758 (148)3,571 (337)419,844 
Mortgage-backed and asset-backed securities319,377 — 1,175 (615)319,937 
Municipal bonds11,990 — 138 — 12,128 
Redeemable preferred stock7,993 (38)424 (58)8,321 
Total$815,647 $(186)$5,465 $(1,065)$819,861 
Schedule of Credit Quality of Investment Securities With Contractual Maturities or The Issuer of Such Securities
The following table provides the credit quality of available-for-sale debt securities with contractual maturities as of the dates presented (dollars in thousands):
December 31, 2021December 31, 2020
% of Total% of Total
Average Credit RatingsFair ValueFair ValueFair ValueFair Value
AAA$321,975 31.0 %$337,462 41.2 %
AA139,186 13.4 %89,681 10.9 %
A339,500 32.6 %230,290 28.1 %
BBB234,358 22.5 %160,662 19.6 %
BB and Below— — %233 — %
No Rating Available5,436 0.5 %1,533 0.2 %
Total$1,040,455 100.0 %$819,861 100.0 %
Schedule of Amortized Cost and Fair Value on Mortgage-Backed and Asset-Backed Securities
The following table summarizes the amortized cost and fair value of mortgage-backed and asset-backed securities as of the dates presented (in thousands):
December 31, 2021December 31, 2020
Amortized
Cost
Fair ValueAmortized
Cost
Fair Value
Mortgage-backed securities:
Agency$147,992 $143,819 $153,937 $153,758 
Non-agency59,906 58,263 54,231 54,666 
Asset-backed securities:
Auto loan receivables67,352 66,877 68,188 68,440 
Credit card receivables4,741 4,719 7,878 7,891 
Other receivables42,853 42,440 35,143 35,182 
Total$322,844 $316,118 $319,377 $319,937 
Summarized Fair Value and Gross Unrealized Losses on Securities Available for Sale
The following tables summarize available-for-sale debt securities, aggregated by major security type and length of time that individual securities have been in a continuous unrealized loss position, for which no allowance for expected credit losses has been recorded as of the dates presented (in thousands):
December 31, 2021
Less Than 12 Months12 Months or Longer
Number of
Issues
Fair ValueUnrealized
Losses
Number of
Issues
Fair ValueUnrealized
Losses
Debt Securities:
U.S. government obligations and agencies$18,913 $(111)$5,016 $(223)
Corporate bonds249 378,595 (7,468)18 17,356 (679)
Mortgage-backed and asset-backed securities145 274,883 (5,969)11 23,273 (951)
Municipal bonds9,811 (269)— — — 
Redeemable preferred stock200 (1)— — — 
Total404 $682,402 $(13,818)33 $45,645 $(1,853)
December 31, 2020
Less Than 12 Months12 Months or Longer
Number of
Issues
Fair ValueUnrealized
Losses
Number of
Issues
Fair ValueUnrealized
Losses
Debt Securities:
U.S. government obligations and agencies$31,729 $(55)— $— $— 
Corporate bonds27 28,791 (162)— — — 
Mortgage-backed and asset-backed securities42 112,462 (615)— — — 
Municipal bonds— — — — — — 
Redeemable preferred stock688 (12)— — — 
Total79 $173,670 $(844)— $— $— 
Debt Securities, Available-for-sale, Allowance for Credit Loss
The following table presents a reconciliation of the beginning and ending balances for expected credit losses on available-for-sale debt securities (in thousands):
Corporate BondsMunicipal BondsRedeemable
 Preferred Stock
Total
Balance, December 31, 2019$— $— $— $— 
Cumulative effect adjustment as of January 1, 2020665 — 126 791 
Provision for (or reversal of) credit loss expense(517)— (88)(605)
Balance, December 31, 2020148 — 38 186 
Provision for (or reversal of) credit loss expense223 79 303 
Balance, December 31, 2021$371 $$117 $489 
Amortized Cost and Fair Value of Investments With Contractual Maturities
The following table presents the amortized cost and fair value of investments with maturities as of the date presented (in thousands): 
December 31, 2021
Amortized CostFair Value
Due in one year or less$30,183 $30,163 
Due after one year through five years530,894 522,941 
Due after five years through ten years469,554 457,010 
Due after ten years29,863 29,647 
Perpetual maturity securities698 694 
Total$1,061,192 $1,040,455 
Summary of Securities Available for Sale
The following table provides certain information related to available-for-sale debt securities, equity securities and investment real estate during the periods presented (in thousands):
Years Ended December 31,
202120202019
Proceeds from sales and maturities (fair value):
Available-for-sale debt securities (1)$186,507 $1,148,418 $223,266 
Equity securities$85,103 $81,559 $29,680 
Gross realized gains on sale of securities:
Available-for-sale debt securities (1)$2,649 $57,378 $790 
Equity securities$3,005 $6,438 $367 
Gross realized losses on sale of securities:
Available-for-sale debt securities$(2,434)$(464)$(298)
Equity securities$(208)$— $(14,787)
Realized gains on sales of investment real estate (2)$401 $— $1,213 
(1)
In the third and fourth quarters of 2020, the Company took advantage of the market recovery and recognized $56.4 million of net realized gains on the sale of our available-for-sale debt securities that were in an unrealized gain position.
(2)
 See the discussion below for “Investment Real Estate” sold.
Investment Income (Expense) Comprised Primarily of Interest and Dividends
The following table presents the components of net investment income, comprised primarily of interest and dividends for the periods presented (in thousands):
Years Ended December 31,
202120202019
Available-for-sale debt securities$11,926 $19,091 $24,989 
Equity securities2,651 2,445 2,648 
Cash and cash equivalents (1)51 960 5,176 
Other (2)928 1,050 1,008 
Total investment income15,556 23,546 33,821 
Less: Investment expenses (3)(3,021)(3,153)(3,078)
Net investment income$12,535 $20,393 $30,743 
(1)Includes interest earned on restricted cash and cash equivalents.
(2)Includes investment income earned on real estate investments.
(3)Includes custodial fees, investment accounting and advisory fees, and expenses associated with real estate investments.
Summary of Details on Realized and Unrealized Gains and Losses Related to Equity Securities
The following table provides the unrealized gains and losses recognized for the periods presented on equity securities still held at the end of the reported period (in thousands):
Years Ended December 31,
202120202019
Unrealized gains and (losses) recognized during the reported period
   on equity securities still held at the end of the reporting period
$(3,459)$25 $4,163 
Schedule of Real Estate Investment
Investment real estate consisted of the following as of the dates presented (in thousands):
As of December 31,
20212020
Income Producing:
Investment real estate$7,091 $14,685 
Less: Accumulated depreciation(1,200)(1,699)
5,891 12,986 
Non-Income Producing:
Investment real estate— 2,190 
Investment real estate, net$5,891 $15,176 
Schedule of Depreciation Expense Related to Investment Real Estate
Depreciation expense related to investment real estate for the periods presented (in thousands):
Years Ended December 31,
202120202019
Depreciation expense on investment real estate$186 $415 $414