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v3.23.2

Accumulated other comprehensive loss - Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Increase (Decrease) in Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |  |  |
Beginning balance | $ 3,151,265 | $ 2,618,849 | $ 3,071,722 | $ 2,519,906
Other comprehensive loss before reclassifications |  |  | 2,066 | 77
Amounts reclassified from AOCL | 988 | 806 | 2,066 | (13,889)
Other comprehensive income (loss), net of tax | 988 | 806 | 2,066 | (13,812)
Ending balance | 2,904,158 | 2,741,723 | 2,904,158 | 2,741,723
Total |  |  |  |
Increase (Decrease) in Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |  |  |
Beginning balance | (124,455) | (111,834) | (125,533) | (97,216)
Other comprehensive income (loss), net of tax | 988 | 806 | 2,066 | (13,812)
Ending balance | (123,467) | (111,028) | (123,467) | (111,028)
Retirement Plans |  |  |  |
Increase (Decrease) in Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |  |  |
Beginning balance | (124,987) | (112,366) | (126,065) | (113,090)
Other comprehensive loss before reclassifications |  |  | 2,066 | 0
Amounts reclassified from AOCL | 988 | 806 |  | 1,530
Other comprehensive income (loss), net of tax | 988 | 806 | 2,066 | 1,530
Ending balance | (123,999) | (111,560) | (123,999) | (111,560)
Foreign Currency Translation |  |  |  |
Increase (Decrease) in Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |  |  |
Beginning balance | 532 | 532 | 532 | 455
Other comprehensive loss before reclassifications |  |  | 0 | 77
Amounts reclassified from AOCL | 0 | 0 |  | 0
Other comprehensive income (loss), net of tax | 0 | 0 | 0 | 77
Ending balance | 532 | 532 | 532 | 532
Available-For-Sale Investment |  |  |  |
Increase (Decrease) in Accumulated Other Comprehensive Income (Loss) [Roll Forward] |  |  |  |
Beginning balance | 0 | 0 | 0 | 15,419
Other comprehensive loss before reclassifications |  |  | 0 | 0
Amounts reclassified from AOCL | 0 | 0 |  | (15,419)
Other comprehensive income (loss), net of tax | 0 | 0 | 0 | (15,419)
Ending balance | $ 0 | $ 0 | $ 0 | $ 0

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