Consolidated Balance Sheets (Parenthetical) - shares  | 
Mar. 31, 2023  | 
Dec. 31, 2022  | 
|---|---|---|
| Statement of Financial Position [Abstract] | ||
| Trust certificates, authorized (in shares) | 75,000,000 | 75,000,000 | 
| Trust certificates, issued (in shares) | 75,000,000 | 75,000,000 | 
| Trust certificates, outstanding (in shares) | 75,000,000 | 75,000,000 | 
| X | ||||||||||
- Definition Trust Certificates, Shares Authorized No definition available. 
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| X | ||||||||||
- Definition Trust Certificates, Shares, Issued No definition available. 
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| X | ||||||||||
- Definition Trust Certificates, Shares, Outstanding No definition available. 
  | 
| X | ||||||||||
- References No definition available. 
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