| SUMMARY CONSOLIDATED CASH FLOWS | ||||||||||||||||
| (dollars in thousands) | ||||||||||||||||
| (unaudited) | ||||||||||||||||
|
For the Three Months
Ended June 30, |
For the Six Months
Ended June 30, | |||||||||||||||
| 2016 | 2015 | 2016 | 2015 | |||||||||||||
| Income before income taxes | $ | 22,377 | $ | 50,832 | $ | 63,596 | $ | 96,840 | ||||||||
| Taxes paid | (37,862 | ) | (24,050 | ) | (52,285 | ) | (36,764 | ) | ||||||||
| Non-cash expenses | 20,096 | 20,763 | 45,481 | 39,022 | ||||||||||||
| Increase in deferred revenue | 201,730 | 18,273 | 282,170 | 90,776 | ||||||||||||
| Deferred revenue recognized | (34,829 | ) | (41,865 | ) | (69,423 | ) | (86,022 | ) | ||||||||
| Increase (decrease) in operating working capital, deferred charges and other | 19,922 | 1,342 | (61,872 | ) | (76,786 | ) | ||||||||||
| Capital spending and capitalized patent costs | (8,978 | ) | (8,255 | ) | (18,634 | ) | (17,520 | ) | ||||||||
| FREE CASH FLOW | 182,456 | 17,040 | 189,033 | 9,546 | ||||||||||||
| Tax benefit from share-based compensation | — | 624 | — | 2,163 | ||||||||||||
| Payments on long-term debt | — | — | (230,000 | ) | — | |||||||||||
| Acquisition of patents | — | — | (4,500 | ) | (20,000 | ) | ||||||||||
| Long term investments | (2,000 | ) | — | (2,000 | ) | — | ||||||||||
| Proceeds from noncontrolling interests | — | 1,276 | — | 2,551 | ||||||||||||
| Dividends paid | (6,923 | ) | (7,232 | ) | (13,991 | ) | (14,665 | ) | ||||||||
| Share repurchases | (18,596 | ) | (19,841 | ) | (58,995 | ) | (70,572 | ) | ||||||||
| Proceeds from other financing activities | — | 4,500 | — | 4,500 | ||||||||||||
| Proceeds from issuance of senior convertible notes | — | — | — | 316,000 | ||||||||||||
| Purchase of convertible bond hedge | — | — | — | (59,376 | ) | |||||||||||
| Proceeds from issuance of warrants | — | — | — | 42,881 | ||||||||||||
| Payment of debt issuance costs | — | — | — | (9,403 | ) | |||||||||||
| Net proceeds from exercise of stock options | 228 | 26 | 228 | 26 | ||||||||||||
| Unrealized gain on short-term investments | 39 | 21 | 415 | 16 | ||||||||||||
| NET (DECREASE) INCREASE IN CASH AND SHORT-TERM INVESTMENTS | $ | 155,204 | $ | (3,586 | ) | $ | (119,810 | ) | $ | 203,667 | ||||||
