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Balance Sheet Components (Schedule of Other Non-Current Assets) (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
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Balance Sheet Related Disclosures [Abstract] |  |
Non-current deferred income taxes | $ 63,795 | $ 68,323
Long-term investments | 7,575 | 8,395
Other | 4,980 | 6,032
Total | $ 76,350 | $ 82,750

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