XML 76 R18.htm IDEA: XBRL DOCUMENT
v3.23.1

Debt Securities (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2023
Investments, Debt and Equity Securities [Abstract] |
Amortized Cost, Gross Unrealized Gains and Losses, Allowance for Credit Losses and Fair Value of Debt Securities Available-For-Sale | The following table presents the amortized cost, unrealized gain and loss recognized in accumulated other comprehensive income (loss) and fair value of debt securities available-for-sale, aggregated by major security type and contractual maturity.
|  |  | March 31, 2023 |  | December 31, 2022
(in millions) | Contractual Maturity |  | Amortized Cost |  | Unrealized Gain |  | Unrealized Loss |  | Fair Value |  | Amortized Cost |  | Unrealized Gain |  | Unrealized Loss |  | Fair Value
Commercial paper | 0 to 1 years |  | $ | 211.3 |  |  | $ | — |  |  | $ | (0.1) |  |  | $ | 211.2 |  |  | $ | 156.2 |  |  | $ | — |  |  | $ | (0.2) |  |  | $ | 156.0 |
Corporate debt securities | 0 to 1 years |  | 308.4 |  |  | — |  |  | (3.5) |  |  | 304.9 |  |  | 296.2 |  |  | — |  |  | (3.2) |  |  | 293.0 |
Securities of government-sponsored entities | 0 to 1 years |  | 278.3 |  |  | 0.1 |  |  | (3.7) |  |  | 274.7 |  |  | 283.4 |  |  | — |  |  | (6.0) |  |  | 277.4 |
|  |  | $ | 798.0 |  |  | $ | 0.1 |  |  | $ | (7.3) |  |  | $ | 790.8 |  |  | $ | 735.8 |  |  | $ | — |  |  | $ | (9.4) |  |  | $ | 726.4 |
Corporate debt securities | 1 to 3 years |  | $ | 208.1 |  |  | $ | 0.5 |  |  | $ | (2.1) |  |  | $ | 206.5 |  |  | $ | 259.5 |  |  | $ | 0.2 |  |  | $ | (4.3) |  |  | $ | 255.4 |
Securities of government-sponsored entities | 1 to 3 years |  | 38.7 |  |  | 0.1 |  |  | (0.7) |  |  | 38.1 |  |  | 45.0 |  |  | — |  |  | (1.0) |  |  | 44.0 |
|  |  | $ | 246.8 |  |  | $ | 0.6 |  |  | $ | (2.8) |  |  | $ | 244.6 |  |  | $ | 304.5 |  |  | $ | 0.2 |  |  | $ | (5.3) |  |  | $ | 299.4 |
Gross Unrealized Losses and Fair Value Available-For-Sale Investments in Unrealized Loss Position | The following table presents debt securities available-for-sale that were in an unrealized loss position as of March 31, 2023, aggregated by major security type and length of time in a continuous loss position.
| Less Than 12 Months |  | 12 Months or Longer |  | Total
(in millions) | Fair Value |  | Unrealized Loss |  | Fair Value |  | Unrealized Loss |  | Fair Value |  | Unrealized Loss
Commercial paper | $ | 49.5 |  |  | $ | (0.1) |  |  | $ | — |  |  | $ | — |  |  | $ | 49.5 |  |  | $ | (0.1) |
Corporate debt securities | $ | 125.4 |  |  | $ | (1.1) |  |  | $ | 307.5 |  |  | $ | (4.5) |  |  | $ | 432.9 |  |  | $ | (5.6) |
Securities of government-sponsored entities | $ | 34.3 |  |  | $ | (0.2) |  |  | $ | 199.5 |  |  | $ | (4.2) |  |  | $ | 233.8 |  |  | $ | (4.4) |
The following table presents debt securities available-for-sale that were in an unrealized loss position as of December 31, 2022, aggregated by major security type and length of time in a continuous loss position.
| Less Than 12 Months |  | 12 Months or Longer |  | Total
(in millions) | Fair Value |  | Unrealized Loss |  | Fair Value |  | Unrealized Loss |  | Fair Value |  | Unrealized Loss
Commercial paper | $ | 32.1 |  |  | $ | (0.2) |  |  | $ | — |  |  | $ | — |  |  | $ | 32.1 |  |  | $ | (0.2) |
Corporate debt securities | $ | 199.5 |  |  | $ | (1.9) |  |  | $ | 299.1 |  |  | $ | (5.6) |  |  | $ | 498.6 |  |  | $ | (7.5) |
Securities of government-sponsored entities | $ | 107.7 |  |  | $ | (2.5) |  |  | $ | 198.4 |  |  | $ | (4.5) |  |  | $ | 306.1 |  |  | $ | (7.0) |

X
- Definition Tabular disclosure of fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 55 -Paragraph 8 -URI https://asc.fasb.org/extlink&oid=121590138&loc=SL82922954-210456 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27290-111563 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 50 -Paragraph 4 -URI https://asc.fasb.org/extlink&oid=124269663&loc=SL82922888-210455 + Details
Name: | us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionFairValueTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
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