Accumulated Other Comprehensive Income	12 Months Ended
Mar. 31, 2023
Disclosure Text Block [Abstract]
Other Comprehensive Income Noncontrolling Interest [Text Block]	Note 12. Accumulated Other Comprehensive Income (Loss) A summary of our AOCI components, net of tax, were as follows: Foreign Currency Translation Unrealized Net Gain on Investments Fair Value of Cash Flow Hedges Postretirement Benefit Obligation Net Loss Accumulated Other Comprehensive Income (Loss) (In thousands) Balance as of March 31, 2020 $ (47,235) $ 90,684 $ (6,196) $ (2,601) $ 34,652 Foreign currency translation (5,694) – – – (5,694) Unrealized net gain on investments – 76,969 – – 76,969 Change in fair value of cash flow hedges – – (429) – (429) Amounts reclassified into earnings on hedging activities – – 2,746 – 2,746 Change in post retirement benefit obligations – – – (1,387) (1,387) Other comprehensive income (loss) (5,694) 76,969 2,317 (1,387) 72,205 Balance as of March 31, 2021 $ (52,929) $ 167,653 $ (3,879) $ (3,988) $ 106,857 Foreign currency translation (2,828) – – – (2,828) Unrealized net loss on investments – (62,626) – – (62,626) Change in fair value of cash flow hedges – – 457 – 457 Amounts reclassified into earnings on hedging activities – – 2,978 – 2,978 Change in post retirement benefit obligations – – – 1,546 1,546 Other comprehensive income (loss) (2,828) (62,626) 3,435 1,546 (60,473) Balance as of March 31, 2022 $ (55,757) $ 105,027 $ (444) $ (2,442) $ 46,384 Foreign currency translation (782) – – – (782) Unrealized net loss on investments – (319,190) – – (319,190) Change in fair value of cash flow hedges – – 5,033 – 5,033 Amounts reclassified into earnings on hedging activities – – (582) – (582) Change in post retirement benefit obligations – – – 2,091 2,091 Other comprehensive income (loss) (782) (319,190) 4,451 2,091 (313,430) Balance as of March 31, 2023$( 56,539 )$( 214,163 )$ 4,007 $ ( 351 )$ (267,046)

Accumulated Other Comprehensive Income

12 Months Ended

Mar. 31, 2023

Other Comprehensive Income Noncontrolling Interest [Text Block]

Note 12. Accumulated Other Comprehensive Income (Loss) A summary of our AOCI components, net of tax, were as follows: Foreign Currency Translation Unrealized Net Gain on Investments Fair Value of Cash Flow Hedges Postretirement Benefit Obligation Net Loss Accumulated Other Comprehensive Income (Loss) (In thousands) Balance as of March 31, 2020 $ (47,235) $ 90,684 $ (6,196) $ (2,601) $ 34,652 Foreign currency translation (5,694) – – – (5,694) Unrealized net gain on investments – 76,969 – – 76,969 Change in fair value of cash flow hedges – – (429) – (429) Amounts reclassified into earnings on hedging activities – – 2,746 – 2,746 Change in post retirement benefit obligations – – – (1,387) (1,387) Other comprehensive income (loss) (5,694) 76,969 2,317 (1,387) 72,205 Balance as of March 31, 2021 $ (52,929) $ 167,653 $ (3,879) $ (3,988) $ 106,857 Foreign currency translation (2,828) – – – (2,828) Unrealized net loss on investments – (62,626) – – (62,626) Change in fair value of cash flow hedges – – 457 – 457 Amounts reclassified into earnings on hedging activities – – 2,978 – 2,978 Change in post retirement benefit obligations – – – 1,546 1,546 Other comprehensive income (loss) (2,828) (62,626) 3,435 1,546 (60,473) Balance as of March 31, 2022 $ (55,757) $ 105,027 $ (444) $ (2,442) $ 46,384 Foreign currency translation (782) – – – (782) Unrealized net loss on investments – (319,190) – – (319,190) Change in fair value of cash flow hedges – – 5,033 – 5,033 Amounts reclassified into earnings on hedging activities – – (582) – (582) Change in post retirement benefit obligations – – – 2,091 2,091 Other comprehensive income (loss) (782) (319,190) 4,451 2,091 (313,430) Balance as of March 31, 2023$( 56,539 )$( 214,163 )$ 4,007 $ ( 351 )$ (267,046)