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Fair Value Measurements (Tables)
12 Months Ended
Dec. 31, 2020
Fair Value Disclosures [Abstract]  
Schedule of fair value hierarchy of assets measured on nonrecurring basis and gain (losses) recorded
 Total Losses
 Years Ended December 31,
 20202019
 (in thousands)
Equipment held for lease$20,470 $18,132 
Equipment held for sale70 88 
Total$20,540 $18,220