Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Summary of Depreciation and Amortization Expense of Rental Equipment and Other Property and Equipment (Details)

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Summary of Significant Accounting Policies - Summary of Depreciation and Amortization Expense of Rental Equipment and Other Property and Equipment (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Property Plant And Equipment [Line Items]      
Depreciation $ 8,860 $ 5,695 $ 6,253
Depreciation and amortization 12,853 9,577 9,674
Rental equipment      
Property Plant And Equipment [Line Items]      
Depreciation 8,860 5,695 6,253
Other property and equipment      
Property Plant And Equipment [Line Items]      
Depreciation and amortization $ 3,993 $ 3,882 $ 3,421