XML 47 R31.htm IDEA: XBRL DOCUMENT
v3.22.4

Investments (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2022
Gross Unrealized Gains and Losses and Amortized Cost and Fair Value of Investments Classified as Held-to-maturity | The amortized cost, allowance for credit losses, carrying amount, gross unrecognized gains and losses, and the fair value of those investments classified as held-to-maturity at December 31, 2022 are summarized as follows:
|  | Amortized Cost |  |  | Allowance for Credit Losses |  |  | Carrying Amount |  |  | Gross Unrecognized Gains |  |  | Gross Unrecognized Losses |  |  | Fair Value |
|  | (in thousands) |
States and political subdivisions |  | $ | 415,136 |  |  | $ | (40 | ) |  | $ | 415,096 |  |  | $ | 922 |  |  | $ | (20,074 | ) |  | $ | 395,944 |
Corporate bonds |  |  | 59,903 |  |  |  | (196 | ) |  |  | 59,707 |  |  |  | 1 |  |  |  | (3,857 | ) |  |  | 55,851 |
U.S. agency-based mortgage-backed securities |  |  | 3,696 |  |  |  | — |  |  |  | 3,696 |  |  |  | 33 |  |  |  | (153 | ) |  |  | 3,576 |
U.S. Treasury securities and obligations of U.S. government agencies |  |  | 13,123 |  |  |  | — |  |  |  | 13,123 |  |  |  | 25 |  |  |  | (442 | ) |  |  | 12,706 |
Asset-backed securities |  |  | 69 |  |  |  | (3 | ) |  |  | 66 |  |  |  | 2 |  |  |  | (1 | ) |  |  | 67 |
Totals |  | $ | 491,927 |  |  | $ | (239 | ) |  | $ | 491,688 |  |  | $ | 983 |  |  | $ | (24,527 | ) |  | $ | 468,144 |
The amortized cost, allowance for credit losses, carrying amount, gross unrealized gains and losses, and the fair value of those investments classified as held-to-maturity at December 31, 2021 are summarized as follows:
|  | Amortized Cost |  |  | Allowance for Credit Losses |  |  | Carrying Amount |  |  | Gross Unrecognized Gains |  |  | Gross Unrecognized Losses |  |  | Fair Value |
|  | (in thousands) |
States and political subdivisions |  | $ | 471,688 |  |  | $ | (48 | ) |  | $ | 471,640 |  |  | $ | 25,175 |  |  | $ | (263 | ) |  | $ | 496,552 |
Corporate bonds |  |  | 56,756 |  |  |  | (143 | ) |  |  | 56,613 |  |  |  | 1,344 |  |  |  | (114 | ) |  |  | 57,843 |
U.S. agency-based mortgage-backed securities |  |  | 4,623 |  |  |  | — |  |  |  | 4,623 |  |  |  | 377 |  |  |  | — |  |  |  | 5,000 |
U.S. Treasury securities and obligations of U.S. government agencies |  |  | 16,251 |  |  |  | — |  |  |  | 16,251 |  |  |  | 132 |  |  |  | (36 | ) |  |  | 16,347 |
Asset-backed securities |  |  | 108 |  |  |  | (4 | ) |  |  | 104 |  |  |  | 4 |  |  |  | — |  |  |  | 108 |
Totals |  | $ | 549,426 |  |  | $ | (195 | ) |  | $ | 549,231 |  |  | $ | 27,032 |  |  | $ | (413 | ) |  | $ | 575,850 |
Gross Unrealized Gains and Losses and Cost or Amortized Cost and Fair Value of Investments Classified as Available-for-sale | The amortized cost, gross unrealized gains and losses, fair value, and the allowance for credit losses of those investments classified as available-for-sale at December 31, 2022 are summarized as follows:
|  | Amortized Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |  |  | Fair Value |  |  | Allowance for Credit Losses |
|  | (in thousands) |
States and political subdivisions |  | $ | 166,019 |  |  | $ | 463 |  |  | $ | (9,826 | ) |  | $ | 156,656 |  |  | $ | — |
Corporate bonds |  |  | 150,915 |  |  |  | 530 |  |  |  | (6,657 | ) |  |  | 144,788 |  |  |  | — |
U.S. agency-based mortgage-backed securities |  |  | 5,984 |  |  |  | — |  |  |  | (538 | ) |  |  | 5,446 |  |  |  | — |
U.S. Treasury securities and obligations of U.S. government agencies |  |  | 15,675 |  |  |  | 9 |  |  |  | (1,453 | ) |  |  | 14,231 |  |  |  | — |
Totals |  | $ | 338,593 |  |  | $ | 1,002 |  |  | $ | (18,474 | ) |  | $ | 321,121 |  |  | $ | — |
The amortized cost, gross unrealized gains and losses, fair value, and the allowance for credit losses of those investments classified as available-for-sale at December 31, 2021 are summarized as follows:
|  | Amortized Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |  |  | Fair Value |  |  | Allowance for Credit Losses |
|  | (in thousands) |
States and political subdivisions |  | $ | 202,008 |  |  | $ | 14,538 |  |  | $ | (240 | ) |  | $ | 216,306 |  |  | $ | — |
Corporate bonds |  |  | 93,947 |  |  |  | 2,751 |  |  |  | (272 | ) |  |  | 96,426 |  |  |  | — |
U.S. agency-based mortgage-backed securities |  |  | 7,944 |  |  |  | 158 |  |  |  | (13 | ) |  |  | 8,089 |  |  |  | — |
U.S. Treasury securities and obligations of U.S. government agencies |  |  | 20,698 |  |  |  | 382 |  |  |  | (132 | ) |  |  | 20,948 |  |  |  | — |
Totals |  | $ | 324,597 |  |  | $ | 17,829 |  |  | $ | (657 | ) |  | $ | 341,769 |  |  | $ | — |
Gross Unrealized Gains and Losses and Cost of Equity | The cost, gross unrealized gains and losses, and the fair value of equity securities at December 31, 2022 are summarized as follows:
|  | Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |  |  | Fair Value |
|  | (in thousands) |
Equity securities: |  |  |  |  |  |  |  |  |  |  |  |
Domestic common stock |  | $ | 50,185 |  |  | $ | 11,873 |  |  | $ | — |  |  | $ | 62,058 |
Total equity securities |  | $ | 50,185 |  |  | $ | 11,873 |  |  | $ | — |  |  | $ | 62,058 |
The cost, gross unrealized gains and losses on, and fair value of equity securities at December 31, 2021 are summarized as follows:
|  | Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |  |  | Fair Value |
|  | (in thousands) |
Equity securities: |  |  |  |  |  |  |  |  |  |  |  |
Domestic common stock |  | $ | 44,175 |  |  | $ | 19,965 |  |  | $ | — |  |  | $ | 64,140 |
Total equity securities |  | $ | 44,175 |  |  | $ | 19,965 |  |  | $ | — |  |  | $ | 64,140 |
A Summary of the Company's Realized Gains and Losses on Sales, Calls or Redemptions of Investments | A summary of the Company’s realized gains and losses on sales, calls or redemptions of investments for 2022, 2021 and 2020 is as follows:
|  | Fixed Maturity Securities Available-for-Sale |  |  | Equity Securities |  |  | Other |  |  | Total |
|  | (in thousands) |
Year ended December 31, 2022 |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from sales |  | $ | 42,505 |  |  | $ | 8,487 |  |  | $ | — |  |  | $ | 50,992 |
Gross realized investment gains |  | $ | 365 |  |  | $ | 3,350 |  |  | $ | — |  |  | $ | 3,715 |
Gross realized investment losses |  |  | (51 | ) |  |  | — |  |  |  | — |  |  |  | (51 | )
Net realized investment gains |  |  | 314 |  |  |  | 3,350 |  |  |  | — |  |  |  | 3,664 |
Other, including losses on calls and redemptions |  |  | (200 | ) |  |  | — |  |  |  | (24 | ) |  |  | (224 | )
Net realized gains (losses) on investments |  | $ | 114 |  |  | $ | 3,350 |  |  | $ | (24 | ) |  | $ | 3,440 |
Year ended December 31, 2021 |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from sales |  | $ | 28,191 |  |  | $ | — |  |  | $ | 12,388 |  |  | $ | 40,579 |
Gross realized investment gains |  | $ | 1,751 |  |  | $ | — |  |  | $ | 3 |  |  | $ | 1,754 |
Gross realized investment losses |  |  | (21 | ) |  |  | — |  |  |  | — |  |  |  | (21 | )
Net realized investment gains |  |  | 1,730 |  |  |  | — |  |  |  | 3 |  |  |  | 1,733 |
Other, including losses on calls and redemptions |  |  | (6 | ) |  |  | — |  |  |  | (32 | ) |  |  | (38 | )
Net realized gains (losses) on investments |  | $ | 1,724 |  |  | $ | — |  |  | $ | (29 | ) |  | $ | 1,695 |
Year ended December 31, 2020 |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from sales |  | $ | 25,436 |  |  | $ | — |  |  | $ | 46,959 |  |  | $ | 72,395 |
Gross realized investment gains |  | $ | 711 |  |  | $ | — |  |  | $ | 306 |  |  | $ | 1,017 |
Gross realized investment losses |  |  | (14 | ) |  |  | — |  |  |  | (4 | ) |  |  | (18 | )
Net realized investment gains |  |  | 697 |  |  |  | — |  |  |  | 302 |  |  |  | 999 |
Other, including gains (losses) on calls and redemptions |  |  | (43 | ) |  |  | — |  |  |  | 176 |  |  |  | 133 |
Net realized gains on investments |  | $ | 654 |  |  | $ | — |  |  | $ | 478 |  |  | $ | 1,132 |
Major Categories of the Company's Net Investment Income | Major categories of the Company’s net investment income are summarized as follows:
|  | Year Ended December 31, |
|  | 2022 |  |  | 2021 |  |  | 2020 |
|  | (in thousands) |
Gross investment income: |  |  |  |  |  |  |  |  |
Fixed maturity securities |  | $ | 24,399 |  |  | $ | 24,882 |  |  | $ | 28,414 |
Equity securities |  |  | 1,566 |  |  |  | 1,236 |  |  |  | 1,006 |
Short-term investments and cash and cash equivalents |  |  | 2,260 |  |  |  | 304 |  |  |  | 897 |
Total gross investment income |  |  | 28,225 |  |  |  | 26,422 |  |  |  | 30,317 |
Investment expenses |  |  | (1,002 | ) |  |  | (987 | ) |  |  | (953 | )
Net investment income |  | $ | 27,223 |  |  | $ | 25,435 |  |  | $ | 29,364 |
Investment Securities Continuous Unrealized Loss Position | The following table summarizes the fair value and gross unrealized losses on fixed maturity securities classified as available-for-sale, aggregated by major investment category and length of time that the individual securities have been in a continuous unrealized loss position:
|  | Less Than 12 Months |  |  | 12 Months or Greater |  |  | Total |
|  | Fair Value of Investments with Unrealized Losses |  |  | Gross Unrealized Losses |  |  | Fair Value of Investments with Unrealized Losses |  |  | Gross Unrealized Losses |  |  | Fair Value of Investments with Unrealized Losses |  |  | Gross Unrealized Losses |
|  | (in thousands) |
December 31, 2022 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Available-for-Sale |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
States and political subdivisions |  | $ | 87,522 |  |  | $ | 5,319 |  |  | $ | 24,980 |  |  | $ | 4,507 |  |  | $ | 112,502 |  |  | $ | 9,826 |
Corporate bonds |  |  | 98,590 |  |  |  | 4,549 |  |  |  | 30,011 |  |  |  | 2,108 |  |  |  | 128,601 |  |  |  | 6,657 |
U.S. agency-based mortgage-backed securities |  |  | 4,732 |  |  |  | 444 |  |  |  | 714 |  |  |  | 94 |  |  |  | 5,446 |  |  |  | 538 |
U.S. Treasury securities and obligations of U.S. government agencies |  |  | 5,589 |  |  |  | 313 |  |  |  | 7,719 |  |  |  | 1,140 |  |  |  | 13,308 |  |  |  | 1,453 |
Total available-for-sale securities |  | $ | 196,433 |  |  | $ | 10,625 |  |  | $ | 63,424 |  |  | $ | 7,849 |  |  | $ | 259,857 |  |  | $ | 18,474 |
December 31, 2021 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Available-for-Sale |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
States and political subdivisions |  | $ | 23,465 |  |  | $ | 240 |  |  | $ | — |  |  | $ | — |  |  | $ | 23,465 |  |  | $ | 240 |
Corporate bonds |  |  | 36,443 |  |  |  | 272 |  |  |  | — |  |  |  | — |  |  |  | 36,443 |  |  |  | 272 |
U.S. agency-based mortgage-backed securities |  |  | 1,146 |  |  |  | 13 |  |  |  | — |  |  |  | — |  |  |  | 1,146 |  |  |  | 13 |
U.S. Treasury securities and obligations of U.S. government agencies |  |  | 6,771 |  |  |  | 132 |  |  |  | — |  |  |  | — |  |  |  | 6,771 |  |  |  | 132 |
Total available-for-sale securities |  | $ | 67,825 |  |  | $ | 657 |  |  | $ | — |  |  | $ | — |  |  | $ | 67,825 |  |  | $ | 657 |
Changes in Allowance for Credit Losses by Major Security Type of Investments Classified as Held-to-Maturity | The following table illustrates the changes in the allowance for credit losses by major security type of the investments classified as held-to-maturity for the year ended December 31, 2022.
|  | States and Political Subdivisions |  |  | Corporate Bonds |  |  | U.S. Agency -Based Mortgage- Backed Securities |  |  | U.S. Treasury Securities and Obligations of U.S. Government Agencies |  |  | Asset-Backed Securities |  |  | Totals |
|  | (in thousands) |
Balance at December 31, 2021 |  | $ | 48 |  |  | $ | 143 |  |  | $ | — |  |  | $ | — |  |  | $ | 4 |  |  | $ | 195 |
Provision for credit loss expense (benefit) |  |  | (8 | ) |  |  | 53 |  |  |  | — |  |  |  | — |  |  |  | (1 | ) |  |  | 44 |
Balance at December 31, 2022 |  | $ | 40 |  |  | $ | 196 |  |  | $ | — |  |  | $ | — |  |  | $ | 3 |  |  | $ | 239 |
Schedule of Amortized Cost Held-to-Maturity Securities Aggregated By Credit Quality Indicator | The table below presents the amortized cost of held-to-maturity securities aggregated by credit quality indicator as of December 31, 2022.
|  | States and Political Subdivisions |  |  | Corporate Bonds |  |  | U.S. Agency -Based Mortgage- Backed Securities |  |  | U.S. Treasury Securities and Obligations of U.S. Government Agencies |  |  | Asset-Backed Securities |  |  | Totals |
|  | Amortized cost |
|  | (in thousands) |
AAA/AA/A ratings |  | $ | 412,166 |  |  | $ | 26,566 |  |  | $ | 3,696 |  |  | $ | 13,123 |  |  | $ | 49 |  |  | $ | 455,600 |
Baa/BBB ratings |  |  | 2,970 |  |  |  | 33,337 |  |  |  | — |  |  |  | — |  |  |  | 10 |  |  |  | 36,317 |
B ratings |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 10 |  |  |  | 10 |
Total |  | $ | 415,136 |  |  | $ | 59,903 |  |  | $ | 3,696 |  |  | $ | 13,123 |  |  | $ | 69 |  |  | $ | 491,927 |
Held-to-Maturity Securities [Member] |
Summary of Amortized Cost and Fair Value of Investments in Fixed Maturity Securities, by Contractual Maturity | A summary of the carrying amounts and fair value of investments in fixed maturity securities classified as held-to-maturity, by contractual maturity, is as follows:
|  | December 31, 2022 |  |  | December 31, 2021 |
|  | Carrying Amount |  |  | Fair Value |  |  | Carrying Amount |  |  | Fair Value |
|  | (in thousands) |
Maturity: |  |  |  |  |  |  |  |  |  |  |  |
Within one year |  | $ | 41,878 |  |  | $ | 41,652 |  |  | $ | 70,859 |  |  | $ | 71,455 |
After one year through five years |  |  | 165,216 |  |  |  | 159,006 |  |  |  | 174,157 |  |  |  | 180,376 |
After five years through ten years |  |  | 121,739 |  |  |  | 112,665 |  |  |  | 100,543 |  |  |  | 104,851 |
After ten years |  |  | 159,093 |  |  |  | 151,178 |  |  |  | 198,945 |  |  |  | 214,060 |
U.S. agency-based mortgage-backed securities |  |  | 3,696 |  |  |  | 3,576 |  |  |  | 4,623 |  |  |  | 5,000 |
Asset-backed securities |  |  | 66 |  |  |  | 67 |  |  |  | 104 |  |  |  | 108 |
Totals |  | $ | 491,688 |  |  | $ | 468,144 |  |  | $ | 549,231 |  |  | $ | 575,850 |
Available-for-Sale Securities [Member] |
Summary of Amortized Cost and Fair Value of Investments in Fixed Maturity Securities, by Contractual Maturity | A summary of the amortized cost and fair value of investments in fixed maturity securities classified as available-for-sale, by contractual maturity, is as follows:
|  | December 31, 2022 |  |  | December 31, 2021 |
|  | Amortized Cost |  |  | Fair Value |  |  | Amortized Cost |  |  | Fair Value |
|  | (in thousands) |
Maturity: |  |  |  |  |  |  |  |  |  |  |  |
Within one year |  | $ | 28,290 |  |  | $ | 27,814 |  |  | $ | 30,925 |  |  | $ | 31,258 |
After one year through five years |  |  | 68,876 |  |  |  | 65,406 |  |  |  | 97,830 |  |  |  | 100,716 |
After five years through ten years |  |  | 102,296 |  |  |  | 95,366 |  |  |  | 58,050 |  |  |  | 60,137 |
After ten years |  |  | 133,147 |  |  |  | 127,089 |  |  |  | 129,848 |  |  |  | 141,569 |
U.S. agency-based mortgage-backed securities |  |  | 5,984 |  |  |  | 5,446 |  |  |  | 7,944 |  |  |  | 8,089 |
Totals |  | $ | 338,593 |  |  | $ | 321,121 |  |  | $ | 324,597 |  |  | $ | 341,769 |

X
- Definition Schedule of Cost of equity securities. + References No definition available. + Details
Name: | amsf_ScheduleOfCostOfEquitySecuritiesTableTextBlock
Namespace Prefix: | amsf_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of allowance for credit loss on investment in debt security measured at amortized cost (held-to-maturity). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 + Details
Name: | us-gaap_DebtSecuritiesHeldToMaturityAllowanceForCreditLossTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of credit quality indicator for investment in debt security measured at amortized cost (held-to-maturity). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 5 -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919230-210447 + Details
Name: | us-gaap_DebtSecuritiesHeldToMaturityCreditQualityIndicatorTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of information about investment in debt security measured at amortized cost (held-to-maturity). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5B -URI https://asc.fasb.org/extlink&oid=126970911&loc=SL120269825-111563 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5A -URI https://asc.fasb.org/extlink&oid=126970911&loc=SL120269820-111563 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27232-111563 + Details
Name: | us-gaap_HeldToMaturitySecuritiesTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of investment income, including, but not limited to, interest and dividend income and amortization of discount (premium) derived from debt and equity securities. Excludes realized and unrealized gain (loss) on investments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.9) -URI https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.2) -URI https://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.7(a),(b)) -URI https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.8) -URI https://asc.fasb.org/extlink&oid=126953954&loc=SL114868664-224227 + Details
Name: | us-gaap_InvestmentIncomeTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments. + References No definition available. + Details
Name: | us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the reconciliation of available-for-sale securities from cost basis to fair value. + References No definition available. + Details
Name: | us-gaap_ScheduleOfAvailableForSaleSecuritiesReconciliationTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the proceeds from sales of available-for-sale securities and the gross realized gains and gross realized losses that have been included in earnings as a result of those sales. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27357-111563 + Details
Name: | us-gaap_ScheduleOfRealizedGainLossTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition For all investments in an unrealized loss position, including those for which other-than-temporary impairments have not been recognized in earnings (including investments for which a portion of an other-than-temporary impairment has been recognized in other comprehensive income), a tabular disclosure of the aggregate related fair value of investments with unrealized losses and the aggregate amount of unrealized losses (that is, the amount by which amortized cost basis exceeds fair value). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27290-111563 + Details
Name: | us-gaap_ScheduleOfUnrealizedLossOnInvestmentsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_InformationByCategoryOfDebtSecurityAxis=us-gaap_HeldtomaturitySecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InformationByCategoryOfDebtSecurityAxis=us-gaap_AvailableforsaleSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |