Property and Equipment (Tables)

6 Months Ended

Mar. 31, 2018

Property Plant And Equipment [Abstract]

Property and Equipment

Property and equipment are stated at cost. Depreciation is computed over the estimated useful lives of the depreciable assets using the straight-line method (in thousands):

	March 31, 2018		September 30, 2017
Property and equipment	$	206,079	$	201,312
Less: accumulated depreciation		126,318		121,639
Property and equipment, net	$	79,761	$	79,673