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Debt and Finance Leases - Recourse Debt Redemption Period (Details) - Recourse Debt | 3 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2019 | Jun. 30, 2019 | Dec. 31, 2019
Senior Notes |  |  |
Debt Instrument [Line Items] |  |  |
Average Early Redemption Percentage |  |  | 25.00%
Senior Notes due 2026 | Treasury Rate |  |  |
Debt Instrument [Line Items] |  |  |
Premium percentage of principal amount of note discount factor (as percent) |  |  | 1.00%
Treasury rate redemption (as percentage) |  |  | 0.50%
Senior Notes due 2027 |  |  |
Debt Instrument [Line Items] |  |  |
Average Early Redemption Percentage | 103.06% |  |
Senior Notes due 2027 | Treasury Rate |  |  |
Debt Instrument [Line Items] |  |  |
Premium percentage of principal amount of note discount factor (as percent) |  |  | 1.00%
Treasury rate redemption (as percentage) |  |  | 50.00%
Senior Notes due 2028 |  |  |
Debt Instrument [Line Items] |  |  |
Average Early Redemption Percentage | 99.13% | 99.24% |
Redemption percentage |  |  | 35.00%
Senior Notes due 2028 | Treasury Rate |  |  |
Debt Instrument [Line Items] |  |  |
Premium percentage of principal amount of note discount factor (as percent) |  |  | 1.00%
Treasury rate redemption (as percentage) |  |  | 50.00%
Senior Notes due 2029 |  |  |
Debt Instrument [Line Items] |  |  |
Redemption percentage |  |  | 40.00%
Senior Notes due 2029 | Treasury Rate |  |  |
Debt Instrument [Line Items] |  |  |
Treasury rate redemption (as percentage) |  |  | 0.50%
Redemption Period Prior To 15 May 2021 | Senior Notes due 2026 |  |  |
Debt Instrument [Line Items] |  |  |
Redemption percentage |  |  | 100.00%
Present value of note (as percentage) |  |  | 1.03625
May 15, 2021 to May 14, 2022 | Senior Notes due 2026 |  |  |
Debt Instrument [Line Items] |  |  |
Redemption percentage |  |  | 103.625%
May 15, 2022 to May 14, 2023 | Senior Notes due 2026 |  |  |
Debt Instrument [Line Items] |  |  |
Redemption percentage |  |  | 102.417%
May 15, 2023 to May 14, 2024 | Senior Notes due 2026 |  |  |
Debt Instrument [Line Items] |  |  |
Redemption percentage |  |  | 101.208%
May 15, 2024 and thereafter | Senior Notes due 2026 |  |  |
Debt Instrument [Line Items] |  |  |
Redemption percentage |  |  | 100.00%
Redemption Period Prior To 15 July 2021 | Senior Notes due 2027 |  |  |
Debt Instrument [Line Items] |  |  |
Redemption percentage |  |  | 100.00%
Present value of note (as percentage) |  |  | 1.03313
July 15, 2021 to July14, 2022 | Senior Notes due 2027 |  |  |
Debt Instrument [Line Items] |  |  |
Redemption percentage |  |  | 103.313%
July 15, 2022 to July 14, 2023 | Senior Notes due 2027 |  |  |
Debt Instrument [Line Items] |  |  |
Redemption percentage |  |  | 102.208%
July 15, 2023 to July 14, 2024 | Senior Notes due 2027 |  |  |
Debt Instrument [Line Items] |  |  |
Redemption percentage |  |  | 101.104%
July 15, 2024 and thereafter | Senior Notes due 2027 |  |  |
Debt Instrument [Line Items] |  |  |
Redemption percentage |  |  | 100.00%
Redemption Period Prior to January 15, 2021 | Senior Notes due 2028 |  |  |
Debt Instrument [Line Items] |  |  |
Redemption percentage |  |  | 105.75%
Redemption Period Prior to January 15, 2023 | Senior Notes due 2028 |  |  |
Debt Instrument [Line Items] |  |  |
Redemption percentage |  |  | 100.00%
Present value of note (as percentage) |  |  | 1.02875
January 15, 2023 to January 14, 2024 | Senior Notes due 2028 |  |  |
Debt Instrument [Line Items] |  |  |
Redemption percentage |  |  | 102.875%
January 15, 2024 to January 14, 2025 | Senior Notes due 2028 |  |  |
Debt Instrument [Line Items] |  |  |
Redemption percentage |  |  | 101.917%
January 15, 2025 to January 14, 2026 | Senior Notes due 2028 |  |  |
Debt Instrument [Line Items] |  |  |
Redemption percentage |  |  | 100.958%
January 15, 2026 and thereafter | Senior Notes due 2028 |  |  |
Debt Instrument [Line Items] |  |  |
Redemption percentage |  |  | 100.00%
Redemption Period Prior to June 15, 2022 | Senior Notes due 2029 |  |  |
Debt Instrument [Line Items] |  |  |
Redemption percentage |  |  | 105.25%
Outstanding principal after redemption, percentage (at least) |  |  | 50.00%
Redemption Period Prior to June 15, 2024 | Senior Notes due 2029 |  |  |
Debt Instrument [Line Items] |  |  |
Redemption percentage |  |  | 100.00%
Premium percentage of principal amount of note discount factor (as percent) |  |  | 1.00%
Present value of note (as percentage) |  |  | 1.02625
June 15, 2024 to June 14, 2025 | Senior Notes due 2029 |  |  |
Debt Instrument [Line Items] |  |  |
Redemption percentage |  |  | 102.625%
June 15, 2025 to June 14, 2026 | Senior Notes due 2029 |  |  |
Debt Instrument [Line Items] |  |  |
Redemption percentage |  |  | 101.75%
June 15, 2026 to June 14, 2027 | Senior Notes due 2029 |  |  |
Debt Instrument [Line Items] |  |  |
Redemption percentage |  |  | 100.875%
June 15, 2027 and thereafter | Senior Notes due 2029 |  |  |
Debt Instrument [Line Items] |  |  |
Redemption percentage |  |  | 100.00%

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- Definition Percentage above the Treasury rate over the principal amount of the note used as a discount factor in determining the redemption price of Senior Notes prior to maturity. + References No definition available. + Details
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- Definition Percentage price of original principal amount of debt at which debt can be redeemed by the issuer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph e -URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823 + Details
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