CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Cash Flows from Operating Activities:
Net loss	$ (62,006)	$ (43,971)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	65,715	67,422
Loss (gain) on disposal of property and equipment	468	(98)
Amortization of debt discount and issuance costs	4,109	2,798
Stock-based compensation expense, net of capitalized amount	3,074	3,573
Provision for doubtful accounts	629	706
Non-cash change in finance lease liabilities	4,863	(241)
Non-cash change in exit activities and restructuring liability	5,164	3,198
Non-cash change in deferred rent	0	(778)
Deferred taxes	(787)	65
Accreted interest	1,194	0
Other, net	(78)	(6)
Changes in operating assets and liabilities:
Accounts receivable	1,593	(4,990)
Prepaid expenses, deposits and other assets	1,355	(3,531)
Operating lease right-of-use assets	(5,211)	0
Accounts payable	756	5,155
Accrued and other liabilities	(5,378)	(601)
Deferred revenues	(804)	617
Exit activities and restructuring liability	(3,870)	(4,597)
Short and long-term operating lease liabilities	7,614	0
Asset retirement obligation	202	(141)
Other liabilities	57	(199)
Net cash provided by operating activities	18,659	24,381
Cash Flows from Investing Activities:
Purchases of property and equipment	(23,277)	(23,100)
Proceeds from disposal of property and equipment	272	570
Business acquisition, net of cash acquired	0	(131,748)
Additions to acquired and developed technology	(881)	(2,128)
Net cash used in investing activities	(23,886)	(156,406)
Cash Flows from Financing Activities:
Proceeds from credit agreements	14,000	148,500
Principal payments on credit agreements	(3,268)	(3,267)
Debt issuance costs	(2,815)	(7,696)
Payments on finance lease liabilities	(8,212)	(6,643)
Acquisition of non-controlling interests	(973)	(1,130)
Proceeds from exercise of stock options	0	(210)
Acquisition of common stock for income tax withholdings	(311)	(487)
Other, net	50	175
Net cash (used in) provided by in financing activities	(1,529)	129,242
Effect of exchange rates on cash and cash equivalents	(172)	24
Net decrease in cash and cash equivalents	(6,928)	(2,759)
Cash and cash equivalents at beginning of period	17,823	14,603
Cash and cash equivalents at end of period	10,895	11,844
Supplemental Disclosures of Cash Flow Information:
Cash paid for interest	46,540	46,676
Additions to property and equipment included in accounts payable	$ 5,153	$ 10,235