CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Cash Flows from Operating Activities:
Net loss	$ (27,933)	$ (27,513)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	43,667	36,679
Gain on disposal of fixed asset	(29)	0
Amortization of debt discount and issuance costs	1,712	1,292
Stock-based compensation expense, net of capitalized amount	2,232	1,132
Equity in earnings of equity-method investment	0	(86)
Provision for doubtful accounts	604	520
Non-cash change in capital lease obligations	(371)	258
Non-cash change in exit activities and restructuring liability	1,112	5,391
Non-cash change in deferred rent	(604)	(1,199)
Deferred taxes	60	150
Loss on extinguishment and modification of debt	0	6,785
Other, net	3	200
Changes in operating assets and liabilities:
Accounts receivable	(2,165)	1,485
Prepaid expenses, deposits and other assets	(4,073)	(1,039)
Accounts payable	6,939	477
Accrued and other liabilities	(585)	3,150
Deferred revenues	1,249	(697)
Exit activities and restructuring liability	(2,676)	(2,466)
Asset retirement obligation	(188)	103
Other liabilities	(85)	12
Net cash provided by operating activities	18,869	24,634
Cash Flows from Investing Activities:
Purchases of property and equipment	(16,102)	(12,293)
Proceeds from disposal of property and equipment	541	0
Business acquisition, net of cash acquired	(131,748)	0
Acquisition of non-controlling interests	(1,130)	0
Additions to acquired and developed technology	(1,340)	(444)
Net cash used in investing activities	(149,779)	(12,737)
Cash Flows from Financing Activities:
Proceeds from credit agreements	146,000	295,500
Proceeds from stock issuance	0	40,162
Principal payments on credit agreements	(2,178)	(326,500)
Debt issuance costs	(7,696)	(8,277)
Payments on capital lease obligations	(4,760)	(5,371)
Proceeds from exercise of stock options	(108)	36
Acquisition of common stock for income tax withholdings	(471)	(210)
Other, net	264	(240)
Net cash provided by (used in) in financing activities	131,051	(4,900)
Effect of exchange rates on cash and cash equivalents	(5)	70
Net increase in cash and cash equivalents	136	7,067
Cash and cash equivalents at beginning of period	14,603	10,389
Cash and cash equivalents at end of period	14,739	17,456
Supplemental Disclosures of Cash Flow Information:
Cash paid for interest	28,509	14,899
Non-cash acquisition of property and equipment under capital leases	214	147,788
Additions to property and equipment included in accounts payable	$ 4,023	$ 1,269