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Accumulated Other Comprehensive Income (Loss) - Summary of Changes in Accumulated Other Comprehensive Income (Loss) by Component (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Mar. 31, 2023 | Jun. 30, 2022 | Mar. 31, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Accumulated Other Comprehensive Income |  |  |  |  |  |
Beginning balance | $ 1,435.1 | $ 1,395.1 | $ 1,265.5 | $ 1,270.3 | $ 1,395.1 | $ 1,270.3
Other comprehensive income (loss) before reclassifications | 4.8 |  | (16.1) |  | 11.6 | (29.0)
Amounts reclassified from accumulated other comprehensive income (loss) | 0.3 |  | 0.1 |  | 0.6 | 0.2
Net current-period other comprehensive income (loss) |  |  | (16.0) |  |  | (28.8)
Less: other comprehensive income attributable to redeemable non-controlling interests |  |  | (1.1) |  |  | (2.2)
Net current-period other comprehensive income attributable to EnPro Industries, Inc. | 5.1 | 7.1 | (14.9) | (11.7) | 12.2 | (26.6)
Ending balance | 1,414.4 | 1,435.1 | 1,280.5 | 1,265.5 | 1,414.4 | 1,280.5
Total |  |  |  |  |  |
Accumulated Other Comprehensive Income |  |  |  |  |  |
Beginning balance | (26.2) | (33.3) | 2.9 | 14.6 | (33.3) | 14.6
Net current-period other comprehensive income attributable to EnPro Industries, Inc. | 5.1 | 7.1 | (14.9) | (11.7) |  |
Ending balance | (21.1) | (26.2) | (12.0) | 2.9 | (21.1) | (12.0)
Unrealized Translation Adjustments |  |  |  |  |  |
Accumulated Other Comprehensive Income |  |  |  |  |  |
Beginning balance | 18.6 | 11.8 | 34.9 | 46.7 | 11.8 | 46.7
Other comprehensive income (loss) before reclassifications | 4.8 |  | (16.1) |  | 11.6 | (29.0)
Amounts reclassified from accumulated other comprehensive income (loss) | 0.0 |  | 0.0 |  | 0.0 | 0.0
Net current-period other comprehensive income (loss) |  |  | (16.1) |  |  | (29.0)
Less: other comprehensive income attributable to redeemable non-controlling interests |  |  | (1.1) |  |  | (2.2)
Net current-period other comprehensive income attributable to EnPro Industries, Inc. | 4.8 |  | (15.0) |  | 11.6 | (26.8)
Ending balance | 23.4 | 18.6 | 19.9 | 34.9 | 23.4 | 19.9
Pension and Other Postretirement Plans |  |  |  |  |  |
Accumulated Other Comprehensive Income |  |  |  |  |  |
Beginning balance | (44.8) | (45.1) | (32.0) | (32.1) | (45.1) | (32.1)
Other comprehensive income (loss) before reclassifications | 0.0 |  | 0.0 |  | 0.0 | 0.0
Amounts reclassified from accumulated other comprehensive income (loss) | 0.3 |  | 0.1 |  | 0.6 | 0.2
Net current-period other comprehensive income (loss) |  |  | 0.1 |  |  | 0.2
Less: other comprehensive income attributable to redeemable non-controlling interests |  |  | 0.0 |  |  | 0.0
Net current-period other comprehensive income attributable to EnPro Industries, Inc. | 0.3 |  | 0.1 |  | 0.6 | 0.2
Ending balance | $ (44.5) | $ (44.8) | $ (31.9) | $ (32.0) | $ (44.5) | $ (31.9)

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