Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Mar. 31, 2019	Mar. 31, 2018	Sep. 30, 2018
Operating activities
Net income	$ 62,645	$ 38,945
Adjustments to reconcile net income to net cash used in operating activities:
Depreciation and amortization	7,066	7,765
Amortization and impairment of other intangible assets	1,861	2,270
Acquisition-related contingent consideration	93	396
Provision for doubtful accounts	3,784	5,676	$ 3,800
Non-cash share-based compensation	6,393	4,676
Amortization of debt discount and issuance costs	2,860	497
Other	(42)	94
Changes in operating assets and liabilities, net of effects from acquisitions:
Accounts receivable, billed and unbilled	(95,746)	(61,677)
Notes receivable	9,653	2,622
Prepaid expenses and other assets	5,979	(378)
Accounts payable, accrued expenses and other	(450)	9,348
Income taxes	11,286	13,480
Accrued compensation	(123,260)	(92,501)
Billings in excess of services provided	5,792	(413)
Net cash used in operating activities	(102,086)	(69,200)
Investing activities
Purchases of property and equipment	(10,153)	(7,680)
Other	72	27
Net cash used in investing activities	(10,081)	(7,653)
Financing activities
Borrowings under revolving line of credit, net	0	45,000
Deposits	1,003	1,431
Purchase and retirement of common stock	(21,883)	(14,220)
Net issuance of common stock under equity compensation plans	(605)	4,215
Payments for business acquisition liabilities	(1,282)	(2,502)
Net cash provided by (used in) financing activities	(22,767)	33,924
Effect of exchange rate changes on cash and cash equivalents	2,106	5,012
Net decrease in cash and cash equivalents	(132,828)	(37,917)
Cash and cash equivalents, beginning of period	312,069	189,961	$ 189,961
Cash and cash equivalents, end of period	179,241	152,044
Supplemental cash flow disclosures
Cash paid for interest	3,450	1,087
Cash paid for income taxes, net of refunds	8,644	1,688
Non-cash investing and financing activities:
Issuance of stock units under incentive compensation plans	$ 1,346	$ 1,059

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, combined with the amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of indefinite-lived intangible assets, other than goodwill, to fair value. As a noncash expense, this element is added back to net income when calculating cash provided by (used in) operations using the indirect method.

No definition available.