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Income Taxes - Uncertain Income Tax Positions (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] |  |  |
Balance at beginning of year | $ 41.9 | $ 76.2 | $ 68.2
Increases related to positions taken in the current year | 4.8 | 2.4 | 1.1
Increases and decreases related to positions taken in prior years | 2.9 |  | 25.7
Increases and decreases related to positions taken in prior years |  | (26.4) |
Decreases related to lapse of statutes of limitations | (3.5) | (10.3) | (18.8)
Settlements during the current year | 0.0 | 0.0 | 0.0
Decreases for tax positions on dispositions | 0.0 | 0.0 | 0.0
Balance at end of year | 46.1 | 41.9 | 76.2
Offsetting non-current deferred tax asset | $ 12.8 | $ 14.4 | $ 27.4

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- Definition Amount of unrecognized tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 10B -URI https://asc.fasb.org/extlink&oid=123427490&loc=SL37586934-109318 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=121826272&loc=SL6600010-109319 + Details
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- Definition Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a)(1) -URI https://asc.fasb.org/extlink&oid=121826272&loc=SL6600010-109319 + Details
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