| Debt - Summary of Balances of Exchangeable Notes (Parenthetical) (Details) | 12 Months Ended | 
|---|---|
| Dec. 31, 2020  $ / shares  shares | |
| January 2020 $1,000 Exchangeable Notes due January 31, 2025 | |
| Debt Instrument [Line Items] | |
| Debt instrument, shares embedded within each unit, shares | shares | 1,000 | 
| Debt instrument, shares embedded within each unit, exchange price | $ / shares | $ 0.7775 | 
| Debt instrument interest rate | 6.50% | 
| Debt instrument maturity date | Jan. 31, 2025 | 
| September 2020 $1,000 Exchangeable Notes due January 31, 2025 | |
| Debt Instrument [Line Items] | |
| Debt instrument, shares embedded within each unit, shares | shares | 1,000 | 
| Debt instrument, shares embedded within each unit, exchange price | $ / shares | $ 0.7775 | 
| Debt instrument interest rate | 6.50% | 
| Debt instrument maturity date | Jan. 31, 2025 | 
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- Definition Debt instrument shares embedded within each unit exchange price. No definition available. 
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- Definition Debt instrument shares embedded within each unit shares. No definition available. 
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available. 
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- Definition Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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