Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Income Statement [Abstract]
Net service revenues	$ 630,330	$ 627,490	$ 1,771,800	$ 1,658,864
Cost of services provided	454,753	451,064	1,311,441	1,220,945
Gross profit	175,577	176,426	460,359	437,919
Selling, general and administrative expense	119,246	104,093	356,840	330,977
Amortization expense	29,247	31,250	89,611	94,800
Income from operations	27,084	41,083	13,908	12,142
Other income	265	343	1,284	1,320
Interest expense	27,499	24,922	77,481	73,372
(Loss) income before income taxes	(150)	16,504	(62,289)	(59,910)
Income tax (expense) benefit	1,247	1,102	(58,150)	(22,037)
Net (loss) income	$ (1,397)	$ 15,402	$ (4,139)	$ (37,873)
(Loss) earnings per share:
Basic and Diluted	$ (0.02)	$ 0.20	$ (0.05)	$ (0.49)

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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