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Accumulated Other Comprehensive Income (Loss) (Tables) | 12 Months Ended
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Dec. 31, 2021
Equity [Abstract] |
Summary of Changes in Accumulated Other Comprehensive Income (Loss) | The changes in accumulated other comprehensive income (loss) are as follows:
| Gains and (Losses) on Cash Flow Hedges |  | Defined Benefit Pension Plan |  | Total Accumulated Other Comprehensive Income (Loss)
| (In millions)
Balance at December 31, 2018 | $ | 3.0 |  |  | $ | 1.2 |  |  | $ | 4.2 |
Other comprehensive income (loss) before reclassifications (1) | (1.7) |  |  | (1.9) |  |  | (3.6) |
Amounts reclassified out of accumulated other comprehensive income (loss) (2) | (2.7) |  |  | — |  |  | (2.7) |
Net current-period other comprehensive income (loss) | (4.4) |  |  | (1.9) |  |  | (6.3) |
Balance at December 31, 2019 | $ | (1.4) |  |  | $ | (0.7) |  |  | $ | (2.1) |
Other comprehensive income (loss) before reclassifications (3) | 1.3 |  |  | (1.4) |  |  | (0.1) |
Amounts reclassified out of accumulated other comprehensive income (loss) (4) | (1.4) |  |  | — |  |  | (1.4) |
Net current-period other comprehensive income (loss) | (0.1) |  |  | (1.4) |  |  | (1.5) |
Balance at December 31, 2020 | $ | (1.5) |  |  | $ | (2.1) |  |  | $ | (3.6) |
Other comprehensive income (loss) before reclassifications (5) | 1.0 |  |  | 1.3 |  |  | 2.3 |
Amounts reclassified out of accumulated other comprehensive income (loss) | — |  |  | — |  |  | — |
Net current-period other comprehensive income (loss) | 1.0 |  |  | 1.3 |  |  | 2.3 |
Balance at December 31, 2021 | $ | (0.5) |  |  | $ | (0.8) |  |  | $ | (1.3) |
(1)Net of tax benefit of $0.8 related to gains on cash flow hedges and tax benefit of $0.7 related to the defined benefit pension plan. (2)Net of tax benefit of $1.1 related to gains on cash flow hedges. (3)Net of tax expense of $0.3 related to cash flow hedges and tax benefit of $0.5 related to the defined benefit pension plan. (4)Net of tax benefit of $0.6 related to gains on cash flow hedges. (5)Net of tax expense of $0.5 related to cash flow hedges and tax expense of $0.5 related to the defined benefit pension plan.

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=124509347&loc=SL7669686-108580 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 45 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900 + Details
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