Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands		9 Months Ended
		Jun. 30, 2018	Jun. 30, 2017
Cash flows from operating activities:
Net loss		$ (4,139)	$ (37,873)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation		56,642	60,740
Amortization of intangible assets		89,611	94,800
Amortization of financing costs and original issue discount		8,080	7,512
Deferred taxes		(57,837)	(36,551)
Equity-based compensation	[1]	20,753	2,637
Hedge ineffectiveness and realized loss		7,338	12,468
Provision for doubtful accounts		1,137	2,752
Other non-cash activities, net		2,281	(1,812)
Change in operating assets and liabilities:
Accounts receivable		(1,597)	(15,671)
Unbilled and deferred revenue		4,219	(17,370)
Inventories		4,290	8,096
Other operating assets		(11,073)	(29,131)
Accounts payable and other operating liabilities		3,945	18,355
Net cash provided by operating activities		123,650	68,952
Cash flows from investing activities:
Purchase of property and equipment		(71,743)	(51,022)
Proceeds from sale of property and equipment		3,946	5,327
Business acquisitions, net of cash acquired		(104,377)	(22,682)
Other investing activities, net		(403)	2,498
Net cash used in investing activities		(172,577)	(65,879)
Cash flows from financing activities:
Repayments of capital lease obligations		(4,786)	(2,572)
Repayments of debt		(64,820)	(164,222)
Proceeds from receivables financing agreement		70,000	150,000
Proceeds from revolving credit facility		55,000
Repurchase of common stock		(2,916)	(2,419)
Proceeds from issuance of common stock		99
Net cash provided by (used in) financing activities		52,577	(19,213)
Net change in cash and cash equivalents		3,650	(16,140)
Cash and cash equivalents, beginning of period		12,779	35,697
Cash and cash equivalents, end of period		$ 16,429	$ 19,557

[1] Represents equity-based compensation expense recognized for equity incentive plans outstanding.