Annual report pursuant to Section 13 and 15(d)

Pension and Other Postretirement Benefits - Amounts Recognized in the Balance Sheets (Details)

v3.22.0.1
Pension and Other Postretirement Benefits - Amounts Recognized in the Balance Sheets (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Share-based Payment Arrangement [Abstract]    
Assets $ 0 $ 0
Liabilities 611 2,150
Total assets and liabilities recognized in balance sheets $ 611 $ 2,150