Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended
Dec. 31, 2018	Dec. 31, 2017
Income Statement [Abstract]
Net service revenues	$ 526,013	$ 551,089
Cost of services provided	394,125	408,539
Gross profit	131,888	142,550
Selling, general and administrative expense	110,143	119,775
Amortization expense	15,130	31,046
Income (loss) from operations	6,615	(8,271)
Other (expense) income	(1,453)	969
Interest expense	17,124	24,913
Loss before income taxes	(11,962)	(32,215)
Income tax benefit	3,135	51,539
Net (loss) income	$ (8,827)	$ 19,324
(Loss) earnings per share:
Basic and diluted	$ (0.09)	$ 0.25

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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