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Rental Equipment | 12 Months Ended
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Sep. 30, 2019
Rental Equipment [Abstract] |
Rental Equipment | 10. Rental Equipment Rental equipment consisted of the following (in thousands):
|  | AS OF SEPTEMBER 30, |
|  | 2019 |  |  | 2018 |
Rental equipment, primarily wireless recording equipment |  | $ | 107,645 |  |  | $ | 76,245 |
Accumulated depreciation and impairment |  |  | (45,583 | ) |  |  | (36,700 | )
|  | $ | 62,062 |  |  | $ | 39,545 |
Rental equipment depreciation expense was $13.7 million and $10.2 million in fiscal years 2019 and 2018, respectively.

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