Investments in Marketable Debt Securities, Available-for-Sale - Additional Information (Detail) |
12 Months Ended | |
---|---|---|
Dec. 31, 2021
USD ($)
|
Dec. 31, 2020 |
|
Schedule of Available-for-sale Securities [Line Items] | ||
Allowance for credit losses | $ 0 | |
Weighted average contractual maturity | 1 year 6 months | 1 year 7 months 6 days |
Fitch, AA Rating [Member] | Moody's, Aaa Rating [Member] | Standard & Poor's, AA Rating [Member] | ||
Schedule of Available-for-sale Securities [Line Items] | ||
Weighted average contractual maturity | 1 year 6 months | |
Fitch, AA+ Rating [Member] | Moody's, Aa3 Rating [Member] | Standard & Poor's, AA+ Rating [Member] | Weighted Average Credit AA Plus Rating [Member] | ||
Schedule of Available-for-sale Securities [Line Items] | ||
Available-for-sale, securities number of unrealized loss positions | 98 | |
Available-for-sale, securities in unrealized loss positions, accumulated loss | $ 511,000 | |
Percentage of amortized cost | 0.20% |
X | ||||||||||
- Definition Available for sale securities continuous unrealized loss positions accumulated loss. No definition available.
|
X | ||||||||||
- Definition Available For Sale Securities Weighted Average Maturity No definition available.
|
X | ||||||||||
- Definition Percentage Of Amortized Cost. No definition available.
|
X | ||||||||||
- Definition Amount of allowance for credit loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
X | ||||||||||
- Definition Number of investments in debt securities 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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
X | ||||||||||
- Details
|
X | ||||||||||
- Details
|
X | ||||||||||
- Details
|
X | ||||||||||
- Details
|
X | ||||||||||
- Details
|
X | ||||||||||
- Details
|
X | ||||||||||
- Details
|