Rental Equipment

12 Months Ended

Sep. 30, 2015

Rental Equipment [Abstract]

Rental Equipment

9. Rental Equipment

Rental equipment consisted of the following (in thousands):

	AS OF SEPTEMBER 30,
	2015			2014
Rental equipment, primarily geophones and related products	$	75,359		$	76,193
Accumulated depreciation		(29,323	)		(22,320	)
	$	46,036		$	53,873

Rental equipment depreciation expense was $13.9 million, $12.4 million and $7.3 million in fiscal years 2015, 2014 and 2013, respectively. The Company transferred $5.0 million and $10.7 million of inventories to its rental equipment during fiscal years 2015 and 2014, respectively, which had a non-cash impact.