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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2019 | Mar. 31, 2018
Cash Flows from Operating Activities: |  |  |
Net income (loss) |  | $ 4,722 | $ (10,942)
Adjustments to reconcile net income (loss) to net cash used in operating activities: |  |  |
Depreciation |  | 12,831 | 9,301
Amortization of intangible assets |  | 886 | 886
Share-based compensation expense |  | 5,506 | 6,081
Change in debt discounts and deferred debt issuance costs | [1] | 3,174 | 2,927
Deferred income taxes |  | 142 | 186
(Gain) loss on sale of property and equipment |  | (107) | 1,471
Changes in other components of working capital |  | (154,192) | (84,272)
Other long-term liabilities |  | 2,177 | 1,139
Other,net |  | 76 | (180)
NET CASH USED IN OPERATING ACTIVITIES |  | (124,785) | (73,403)
Cash Flows from Investing Activities: |  |  |
Acquisition of property and equipment |  | (14,412) | (19,970)
Proceeds from sale of property and equipment |  | 201 | 3,303
Investment in securities |  | (8,357) | (3,288)
Proceeds from maturities and sales of investments in securities |  | 3,324 | 3,007
NET CASH USED IN INVESTING ACTIVITIES |  | (19,244) | (16,948)
Cash Flows from Financing Activities: |  |  |
Proceeds from debt |  | 394,000 | 665,000
Repayment of debt |  | (259,691) | (586,559)
Cash payments related to share-based compensation |  | (2,364) | (2,308)
Distributions paid to noncontrolling interests |  | (4,000) | (5,000)
Contributions from noncontrolling interests |  | 2,798 |
NET CASH PROVIDED BY FINANCING ACTIVITIES |  | 130,743 | 71,133
Net decrease in cash, cash equivalents and restricted cash |  | (13,286) | (19,218)
Cash, cash equivalents and restricted cash at beginning of period |  | 119,863 | 197,648
Cash, cash equivalents and restricted cash at end of period |  | $ 106,577 | $ 178,430
[1] | The combination of cash and non-cash interest expense produces effective interest rates that are higher than contractual rates. Accordingly, the effective interest rates for the 2017 Senior Notes and the Convertible Notes were 7.13% and 9.39%, respectively, for the three months ended March 31, 2019.

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