Fair Value Measurements (Fair Value of Financial Assets and Liabilities) (Details 1) - USD ($) $ in Thousands |
Jun. 30, 2025 |
Dec. 31, 2024 |
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Assets | ||||||||||||||||
Money Market Investments | $ 6,000 | $ 3,900 | ||||||||||||||
Marketable equity securities | 889,515 | 852,434 | ||||||||||||||
Fair Value, Recurring [Member] | ||||||||||||||||
Assets | ||||||||||||||||
Money Market Investments | [1] | 6,008 | 3,908 | |||||||||||||
Marketable equity securities | [2] | 889,515 | 852,434 | |||||||||||||
Other current investments | [3] | 8,633 | 6,309 | |||||||||||||
Foreign exchange swap | [4] | 710 | ||||||||||||||
Total Financial Assets | 904,156 | 863,361 | ||||||||||||||
Liabilities | ||||||||||||||||
Contingent consideration liabilities | [5] | 1,349 | 1,419 | |||||||||||||
Interest rate swaps | [6] | 2,475 | 1,419 | |||||||||||||
Mandatorily redeemable noncontrolling interest | [7] | 21,516 | 159,548 | |||||||||||||
Total Financial Liabilities | 25,340 | 162,386 | ||||||||||||||
Level 1 | Fair Value, Recurring [Member] | ||||||||||||||||
Assets | ||||||||||||||||
Money Market Investments | [1] | 0 | 0 | |||||||||||||
Marketable equity securities | [2] | 889,515 | 852,434 | |||||||||||||
Other current investments | [3] | 0 | 0 | |||||||||||||
Foreign exchange swap | [4] | 0 | ||||||||||||||
Total Financial Assets | 889,515 | 852,434 | ||||||||||||||
Liabilities | ||||||||||||||||
Contingent consideration liabilities | [5] | 0 | 0 | |||||||||||||
Interest rate swaps | [6] | 0 | 0 | |||||||||||||
Mandatorily redeemable noncontrolling interest | [7] | 0 | 0 | |||||||||||||
Total Financial Liabilities | 0 | 0 | ||||||||||||||
Level 2 | Fair Value, Recurring [Member] | ||||||||||||||||
Assets | ||||||||||||||||
Money Market Investments | [1] | 6,008 | 3,908 | |||||||||||||
Marketable equity securities | [2] | 0 | 0 | |||||||||||||
Other current investments | [3] | 8,633 | 6,309 | |||||||||||||
Foreign exchange swap | [4] | 710 | ||||||||||||||
Total Financial Assets | 14,641 | 10,927 | ||||||||||||||
Liabilities | ||||||||||||||||
Contingent consideration liabilities | [5] | 0 | 0 | |||||||||||||
Interest rate swaps | [6] | 2,475 | 1,419 | |||||||||||||
Mandatorily redeemable noncontrolling interest | [7] | 0 | 0 | |||||||||||||
Total Financial Liabilities | 2,475 | 1,419 | ||||||||||||||
Level 3 | Fair Value, Recurring [Member] | ||||||||||||||||
Assets | ||||||||||||||||
Money Market Investments | [1] | 0 | 0 | |||||||||||||
Marketable equity securities | [2] | 0 | 0 | |||||||||||||
Other current investments | [3] | 0 | 0 | |||||||||||||
Foreign exchange swap | [4] | 0 | ||||||||||||||
Total Financial Assets | 0 | 0 | ||||||||||||||
Liabilities | ||||||||||||||||
Contingent consideration liabilities | [5] | 1,349 | 1,419 | |||||||||||||
Interest rate swaps | [6] | 0 | 0 | |||||||||||||
Mandatorily redeemable noncontrolling interest | [7] | 21,516 | 159,548 | |||||||||||||
Total Financial Liabilities | $ 22,865 | $ 160,967 | ||||||||||||||
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