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Valuation and Qualifying Accounts (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset [Member] |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Valuation Allowances and Reserves, Balance, Beginning Balance | $ 226.9 | $ 133.4 | $ 127.1
Valuation Allowances and Reserves, Charged to Cost and Expense | (33.7) | (88.5) | (11.0)
Valuation Allowances and Reserves, Charged to Other Accounts | 12.1 | 10.6 | 4.7
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction | 0.0 | 5.6 | 0.0
Valuation Allowances and Reserves, Balance, Ending Balance | 181.1 | 226.9 | 133.4
SEC Schedule, 12-09, Allowance, Loan and Lease Loss, Real Estate [Member] |  |  |
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |
Valuation Allowances and Reserves, Balance, Beginning Balance | 9.4 | 7.7 | 6.8
Valuation Allowances and Reserves, Charged to Cost and Expense | (1.9) | (1.7) | (0.9)
Valuation Allowances and Reserves, Charged to Other Accounts | 0.0 | 0.0 | 0.0
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction | 0.0 | 0.0 | 0.0
Valuation Allowances and Reserves, Balance, Ending Balance | $ 11.3 | $ 9.4 | $ 7.7

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- Definition Amount of valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 + Details
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- Definition Amount of increase in valuation and qualifying accounts and reserves from charge to cost and expense. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 + Details
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