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Income Taxes NOL and credit carryovers (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
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Operating Loss Carryforwards [Line Items] |  |
Deferred Tax Assets, Operating Loss Carryforwards | $ 6.0 | $ 7.0
Federal NOL carryover valuation allowance | (4.0) |
Federal NOL carryover | 7.0 |
Deferred Tax Liability Not Recognized, Amount of Unrecognized Deferred Tax Liability, Undistributed Earnings of Domestic Subsidiaries | 30.0 |
Operating Loss Carryforwards | 8.0 |
State Credit Carryforwards |  |
Operating Loss Carryforwards [Line Items] |  |
Federal NOL carryover valuation allowance | 0.0 |
Federal NOL carryover | 1.0 |
Operating Loss Carryforwards | 0.0 |
Canadian Capital Loss Carryforwards |  |
Operating Loss Carryforwards [Line Items] |  |
Operating Loss Carryforwards, Valuation Allowance | (4.0) |
Federal NOL carryover | 4.0 |
Operating Loss Carryforwards | 0.0 |
Chile Capital Loss Carryforwards |  |
Operating Loss Carryforwards [Line Items] |  |
Operating Loss Carryforwards, Valuation Allowance | 0.0 |
Federal NOL carryover | 2.0 |
Operating Loss Carryforwards | $ 8.0 |

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- Definition Amount of deferred tax liability not recognized because of the exceptions to comprehensive recognition of deferred taxes related to undistributed earnings of domestic subsidiaries. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=6424122&loc=d3e41874-109331 + Details
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- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32559-109319 + Details
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- Definition The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=121826272&loc=d3e32559-109319 + Details
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