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v3.19.3

Basis of Presentation (Details) $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 30, 2019 USD ($) segment | Sep. 30, 2018 USD ($) | Dec. 31, 2018 USD ($)
Organization, Consolidation and Presentation of Financial Statements [Abstract] |  |  |
Number of reportable segments | segment | 1 |  |
SUPPLEMENTAL CASH FLOW INFORMATION: |  |  |
Interest paid | $ 3,930 | $ 4,740 |
Income taxes paid, including foreign withholding taxes | 16,483 | 24,459 |
Non-cash investing and financing activities: |  |  |
Dividend payable | 10,897 | 11,996 | $ 11,627
Increases in noncontrolling interests | 13,750 | 0 |
Non-cash acquisition of patents | 22,500 | 0 |
Accrued capitalized patent costs and property and equipment | $ 390 | $ (1,513) |

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