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Other net losses
 6 Months Ended
Jun. 30, 2021
Other Income and Expenses [Abstract]  
Other net losses Other net losses
Other net losses consist of the following:
Three months ended June 30Six months ended June 30
2021202020212020
Acquisition and transition-related costs$882 $3,116 $2,984 $3,142 
Tax reform— 11,728 — 11,728 
Management succession and executive retirement— 6,952 — 6,952 
Other931 5,144 7,213 6,008 
$1,813 $26,940 $10,197 $27,830 
Other losses primarily consist of an adjustment to a regulatory liability pertaining to the true-up of prior period tracking accounts, costs pertaining to condemnation proceeding and other miscellaneous asset write-downs.