Consolidated Balance Sheets (Parenthetical) - shares	Jun. 30, 2022	Dec. 31, 2021
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