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v3.7.0.1

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 6 Months Ended
--- | ---
Jun. 30, 2017 | Jun. 30, 2016
Operating activities: |  |
Net loss | $ (39,609) | $ (11,812)
Adjustments to reconcile net loss to net cash provided by operating activities: |  |
Depreciation of fixed assets and amortization of intangibles | 6,813 | 6,381
Amortization of unfavorable lease obligation and debt issuance costs | 524 | 240
Amortization of debt discount | 4,362 | 2,044
Loss on early extinguishment of debt | 3,732 | 0
Loss on disposal of fixed assets | 2,030 | 0
Stock-based compensation | 14,744 | 16,155
Changes in operating assets and liabilities: |  |
Accounts receivable, net | 2,470 | (2,796)
Inventories, net | (2,324) | 729
Prepaid expenses and other assets | 1,849 | 92
Accounts payable, accrued expenses and income taxes payable | 10,551 | (8,658)
Other liabilities | (1,480) | 2,045
Net cash provided by operating activities | 3,662 | 4,420
Investing activities: |  |
Purchases of fixed assets | (8,771) | (15,921)
Purchases of investments | (274,791) | (121,790)
Sales of investments | 82,782 | 100,065
Payment of contingent consideration | (4,206) | (3,871)
Net cash used in investing activities | (204,986) | (41,517)
Financing activities: |  |
Proceeds from exercise of stock options | 2,613 | 4,431
Proceeds from Shares Issued Under Employee Stock Purchase Plans | 1,056 | 995
Proceeds from 2022 convertible senior notes | 345,000 | 0
Repayment of debt | (118,191) | (4)
Payment of debt issuance and financing costs | (11,000) | 0
Costs for conversion of convertible senior notes | (284) | 0
Net cash provided by financing activities | 219,194 | 5,422
Net increase (decrease) in cash and cash equivalents | 17,870 | (31,675)
Cash and cash equivalents, beginning of period | 35,944 | 56,984
Cash and cash equivalents, end of period | 53,814 | 25,309
Supplemental cash flow information: |  |
Cash paid for interest | 2,384 | 1,926
Cash paid for income taxes, net of refunds | 133 | 241
Non-cash investing and financing activities: |  |
Issuance of common stock from conversion of 2019 convertible senior notes | 120,960 | 0
Retirement of equity component of 2019 convertible senior notes | (126,326) | 0
Equity component of the 2022 convertible senior notes | 70,930 | 0
Net increase (decrease) in accrued fixed assets | 2,294 | (662)
Accrued payment of contingent consideration | $ 0 | $ (8,000)

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- Definition The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 + Details
Name: | us-gaap_ShareBasedCompensation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_SupplementalCashFlowInformationAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration