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Note I - Shareholders' Equity - Shareholders' Equity Reconciliation (Details) (Parentheticals) - USD ($) $ in Thousands | Jun. 30, 2021 | Jun. 30, 2020
--- | --- | ---
Net loss on cash flow hedge derivatives, income taxes | $ 211 | $ 341
Net gain on net investment hedge derivatives, taxes | 103 | 0
Benefit plan adjustments, tax | $ 9,537 | $ 13,316

X
- Definition Amount of tax on accumulated gain (loss) on derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness. + References No definition available. + Details
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X
- Definition Amount of tax on accumulated gain (loss) on derivative instrument designated and qualifying as net investment hedge included in assessment of hedge effectiveness. + References No definition available. + Details
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Namespace Prefix: | twin_
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X
- Definition Amount of tax on accumulated gain (loss) for defined benefit plan. + References No definition available. + Details
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Namespace Prefix: | twin_
Data Type: | xbrli:monetaryItemType
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