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CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
OPERATING ACTIVITIES |  |  |
Net income (loss) | $ (7,732) | $ 6,333 | $ (32,421)
Adjustments to reconcile net income (loss) to net cash provided by operating activities: |  |  |
Depreciation and amortization | 85,493 | 73,742 | 71,565
Amortization of intangibles | 2,261 |  |
Pension settlement expense |  | 1,125 | 178
Share-based compensation expense | 6,068 | 6,450 | 5,690
Provision for losses on accounts receivable | 1,524 | 2,394 | 868
Deferred income tax provision (benefit) | (10,359) | 3,056 | (11,457)
Gain on sale of property and equipment | (735) | (2,360) | (981)
Changes in operating assets and liabilities: |  |  |
Receivables | 508 | (6,067) | (32,211)
Prepaid expenses | 305 | (1,105) | 144
Other assets | 961 | (635) | (1,568)
Income taxes | 2,630 | (776) | 21,016
Accounts payable, accrued expenses, and other liabilities | 3,610 | 18,695 | 5,464
NET CASH PROVIDED BY OPERATING ACTIVITIES | 84,534 | 100,852 | 26,287
INVESTING ACTIVITIES |  |  |
Purchases of property, plant and equipment, net of financings | (37,278) | (53,227) | (11,422)
Proceeds from sale of property and equipment | 6,397 | 7,062 | 5,879
Purchases of short-term investments | (55,858) | (59,718) | (65,171)
Proceeds from sale of short-term investments | 60,730 | 64,995 | 119,744
Business acquisition, net of cash acquired | (180,039) |  |
Capitalization of internally developed software and other | (7,218) | (5,295) | (4,355)
NET CASH PROVIDED BY (USED IN) INVESTING ACTIVITIES | (213,266) | (46,183) | 44,675
FINANCING ACTIVITIES |  |  |
Proceeds from issuance of long-term debt | 100,000 |  | 11,416
Payments on long-term debt | (53,000) | (16,056) | (8,077)
Acquisition of noncontrolling interest |  | (4,084) |
Net change in bank overdraft and other | (7,190) | 7,811 | (8,918)
Net change in restricted cash equivalents and short-term investments | 43,035 | (1,032) | (804)
Deferred financing costs | (1,487) | (174) | (35)
Payment of common stock dividends | (3,219) | (3,180) | (3,126)
Proceeds from the exercise of stock options |  | 763 | 1,828
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES | 78,139 | (15,952) | (7,716)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS | (50,593) | 38,717 | 63,246
Cash and cash equivalents at beginning of period | 141,295 | 102,578 | 39,332
CASH AND CASH EQUIVALENTS AT END OF PERIOD | 90,702 | 141,295 | 102,578
NONCASH INVESTING ACTIVITIES |  |  |
Accruals for equipment received | 301 | 338 |
Equipment financed under capital leases and notes payable | $ 37,973 | $ 30,410 | $ 36,343

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- Definition The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3213-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 15, 17 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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