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Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
CASH FLOWS FROM OPERATING ACTIVITIES: |  |  |  |
Net (loss) income |  | $ (31,897) | $ (18,712) | $ 51,885
Adjustments to reconcile net (loss) income to net cash (used in) provided by operating activities: |  |  |  |
Asset impairment |  |  | 1,164 | 60,515
Depreciation and amortization expense |  | 13,990 | 22,747 | 24,938
Bad debt expense |  | 27,436 | 31,885 | 21,980
Compensation expense related to share-based awards |  | 4,970 | 3,237 | 2,857
Loss on sale of businesses, net |  |  |  | 1,793
(Gain) loss on disposition of property and equipment |  |  | (438) | 663
Deferred income taxes |  | 64,225 | (18,087) | (145,807)
Changes in operating assets and liabilities: |  |  |  |
Student receivables, gross |  | 5,129 | 6,925 | (1,517)
Allowance for doubtful accounts |  | (28,075) | (29,033) | (20,960)
Other receivables, net |  | (257) | 1,127 | 14,311
Inventories, prepaid expenses, and other current assets |  | 8,742 | 2,783 | 6,160
Deposits and other non-current assets |  | 1,706 | 1,634 | 2,711
Accounts payable |  | (1,588) | (16,264) | 2,539
Accrued expenses and deferred rent obligations |  | (80,703) | 29,254 | (30,663)
Deferred tuition revenue |  | (5,467) | (11,747) | (12,650)
Net cash (used in) provided by operating activities |  | (21,789) | 6,475 | (21,245)
CASH FLOWS FROM INVESTING ACTIVITIES: |  |  |  |
Purchases of available-for-sale investments |  | (256,243) | (160,590) | (93,360)
Sales of available-for-sale investments |  | 250,928 | 126,830 | 100,173
Purchases of property and equipment | [1] | (6,332) | (4,129) | (11,695)
Proceeds on the sale of assets |  |  | 3,600 | 2,272
Payments of cash upon sale of businesses, net of cash divested |  |  | (62) | (4,013)
Purchase of equity method investment |  |  |  | (1,368)
Net cash used in investing activities |  | (11,647) | (34,351) | (7,991)
CASH FLOWS FROM FINANCING ACTIVITIES: |  |  |  |
Issuance of common stock |  | 2,722 | 773 | 1,401
Borrowings from credit facility |  |  |  | 38,000
Payments on borrowings |  |  | (38,000) | (10,000)
Payments of employee tax associated with stock compensation |  | (1,187) | (563) | (441)
Net cash provided by (used in) financing activities |  | 1,535 | (37,790) | 28,960
EFFECT OF FOREIGN CURRENCY EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS: |  | (82) | (192) | 246
NET DECREASE IN CASH AND CASH EQUIVALENTS |  | (31,983) | (65,858) | (30)
CASH AND CASH EQUIVALENTS, beginning of the year |  | 50,882 | 116,740 | 116,770
CASH AND CASH EQUIVALENTS, end of the year |  | 18,899 | 50,882 | 116,740
Supplemental Cash Flow Information: |  |  |  |
Interest paid |  |  | 153 | 33
Income taxes paid |  | $ 120 | $ 334 | $ 580
[1] | The statement of (loss) income and comprehensive (loss) income balances including revenue, operating income (loss), depreciation and amortization and capital expenditures are presented above on a continuing operations basis. Total assets are presented on a consolidated basis including continuing and discontinued operations.

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- Definition Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3255-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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- Definition The cash inflow associated with the sale of debt and equity securities classified as available-for-sale securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=82896770&loc=d3e26853-111562 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3179-108585 + Details
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- Definition The cash inflow associated with the sale of other real estate not otherwise defined in the taxonomy. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3179-108585 + Details
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- Definition The cash outflow for a borrowing having initial term of repayment within one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3291-108585 + Details
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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
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- References No definition available. + Details
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