CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $)
In Thousands | 9 Months Ended |
|---|
Sep. 30, 2011 | Sep. 30, 2010 |
|---|
| Operating Activities: | | |
| Net income | $ 50,024 | $ 26,242 |
| Adjustments to reconcile net income to net cash provided by (used in) operating activities: | | |
| Depreciation and amortization expense | 24,464 | 17,727 |
| Deferred income taxes | 9,754 | 15,703 |
| Stock-based compensation and other | 8,338 | 7,240 |
| Changes in assets and liabilities, net of effect of acquisition | 2,047 | (66,142) |
| Net cash provided by operating activities | 94,627 | 770 |
| Investing Activities: | | |
| Capital expenditures | (43,118) | (58,682) |
| Payment for business acquisition | 0 | (55,000) |
| Proceeds from sale of investment | 0 | 4,250 |
| Net cash used in investing activities | (43,118) | (109,432) |
| Financing Activities: | | |
| Net proceeds from issuances of common stock | 1,971 | 10,775 |
| Debt issuance costs | (3,084) | 0 |
| Tax benefit of stock-based compensation | 1,161 | 2,067 |
| Net cash provided by financing activities | 48 | 12,842 |
| Net increase (decrease) in cash and cash equivalents | 51,557 | (95,820) |
| Cash and cash equivalents, beginning of period | 252,415 | 372,986 |
| Cash and cash equivalents, end of period | $ 303,972 | $ 277,166 |