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Consolidated Statement of Stockholders' Equity (Parenthetical) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Income tax benefit | $ 16,000 | $ 16,000 | $ 33,000 | $ 33,000
Foreign currency hedging derivatives: |  |  |  |
Tax benefit, hedge | 0 | (174,000) | 0 | 186,000
Interest rate swaps: |  |  |  |
Tax benefit, hedge | $ 0 | $ (14,000) | $ 0 | $ 164,000

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