UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Cash Flows from Operating Activities:
Net loss	$ (27,513)	$ (20,336)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	36,679	38,330
Amortization of debt discount and issuance costs	1,292	1,233
Stock-based compensation expense, net of capitalized amount	1,132	3,464
Equity in earnings of equity-method investment	(86)	(77)
Provision for doubtful accounts	520	580
Non-cash change in capital lease obligations	258	527
Non-cash change in exit activities and restructuring liability	5,391	619
Non-cash change in deferred rent	(1,199)	(1,000)
Deferred taxes	150	39
Payment of debt lender fees	(2,583)	(1,716)
Loss on extinguishment and modification of debt	6,785	0
Other, net	200	186
Changes in operating assets and liabilities:
Accounts receivable	1,485	1,702
Prepaid expenses, deposits and other assets	(1,039)	4,606
Accounts payable	477	2,269
Accrued and other liabilities	3,150	(3,931)
Deferred revenues	(697)	94
Exit activities and restructuring liability	(2,466)	(1,579)
Asset retirement obligation	103	(174)
Other liabilities	12	(35)
Net cash flows provided by operating activities	22,051	24,801
Cash Flows from Investing Activities:
Purchases of property and equipment	(12,293)	(26,314)
Additions to acquired and developed technology	(444)	(769)
Net cash flows used in investing activities	(12,737)	(27,083)
Cash Flows from Financing Activities:
Proceeds from credit agreements	295,500	4,500
Proceeds from stock issuance	40,162	0
Principal payments on credit agreements	(326,500)	(1,500)
Debt issuance costs	(5,694)	0
Payments on capital lease obligations	(5,371)	(4,827)
Proceeds from exercise of stock options	36	675
Acquisition of common stock for income tax withholdings	(210)	(343)
Other, net	(240)	(192)
Net cash flows used in financing activities	(2,317)	(1,687)
Effect of exchange rates on cash and cash equivalents	70	65
Net increase (decrease) in cash and cash equivalents	7,067	(3,904)
Cash and cash equivalents at beginning of period	10,389	17,772
Cash and cash equivalents at end of period	17,456	13,868
Supplemental disclosure of cash flow information:
Cash paid for interest	14,899	14,356
Non-cash acquisition of property and equipment under capital leases	147,788	4,921
Additions to property and equipment included in accounts payable	$ 1,269	$ 6,334