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v3.23.1

Fair Value Measurements (Details) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2023 USD ($) aircraft | Dec. 31, 2022 USD ($)
Fair Value Measurements |  |
Marketable Securities | $ 861,335 | $ 944,231
Maximum period for redemption | 1 year | 1 year
Marketable securities at cost | $ 864,400 | $ 949,300
Held for sale | CRJ 700 |  |
Fair Value Measurements |  |
Number of aircraft held-for-sale | aircraft | 14 |
Assets held for sale | $ 56,700 |
Recurring | Estimate of Fair Value Measurement |  |
Fair Value Measurements |  |
Marketable Securities | 861,335 | 944,231
Investments in Other Companies | 21,883 | 21,380
Cash and Cash Equivalents | 74,524 | 102,984
Total Assets Measured at Fair Value | 957,742 | 1,068,595
Recurring | Estimate of Fair Value Measurement | Bonds and bond funds |  |
Fair Value Measurements |  |
Marketable Securities | 616,525 | 624,254
Recurring | Estimate of Fair Value Measurement | Commercial Paper |  |
Fair Value Measurements |  |
Marketable Securities | 244,810 | 319,977
Recurring | Level 1 |  |
Fair Value Measurements |  |
Investments in Other Companies | 7,240 | 7,200
Cash and Cash Equivalents | 74,524 | 102,984
Total Assets Measured at Fair Value | 81,764 | 110,184
Recurring | Level 2 |  |
Fair Value Measurements |  |
Marketable Securities | 861,335 | 944,231
Total Assets Measured at Fair Value | 861,335 | 944,231
Recurring | Level 2 | Bonds and bond funds |  |
Fair Value Measurements |  |
Marketable Securities | 616,525 | 624,254
Recurring | Level 2 | Commercial Paper |  |
Fair Value Measurements |  |
Marketable Securities | 244,810 | 319,977
Recurring | Level 3 |  |
Fair Value Measurements |  |
Investments in Other Companies | 14,643 | 14,180
Total Assets Measured at Fair Value | $ 14,643 | $ 14,180

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