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Leases - Two Creeks Solar Project (Details) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2019 USD ($) a extension | Dec. 31, 2018 USD ($)
Lessee, Lease, Description [Line Items] |  |
Finance lease obligation | $ 45,900,000 | $ 23,300,000
Two Creeks Solar Project |  |
Lessee, Lease, Description [Line Items] |  |
Solar land lease acreage | a | 600 |
Lease initial term | 30 years |
Number of contract extensions | extension | 2 |
Renewal term | 10 years |
Lease extended term | 50 years |
Finance lease obligation | $ 7,700,000 |
Finance lease obligation at end of life of solar land contract | $ 0 |

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- Definition Term of lessee's finance lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918673-209980 + Details
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- Definition Term of lessee's finance lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918673-209980 + Details
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