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Concentration of Risks and Significant Customers (Details) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2022 USD ($) investment | Jun. 30, 2021 USD ($) | Jun. 30, 2022 USD ($) investment | Jun. 30, 2021 USD ($) | Dec. 31, 2021 USD ($)
Concentration Risk [Line Items] |  |  |  |  |
Cash and cash equivalents | $ 1,220,273 | $ 1,579,287 | $ 1,220,273 | $ 1,579,287 | $ 1,247,581
Marketable securities | 444,873 |  | 444,873 |  | 452,875
Credit Concentration Risk | Investments |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |
Cash and cash equivalents | $ 500,000 |  | $ 500,000 |  | 1,200,000
Number of investments | investment | 3 |  | 3 |  |
Credit Concentration Risk | Debt Securities, Available-For-Sale |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |
Marketable securities | $ 410,400 |  | $ 410,400 |  | $ 418,300
Credit Concentration Risk | Debt Securities, Available-For-Sale | Marketable Securities |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |
Concentration risk, percentage |  |  | 92.00% |  | 92.00%
Credit Concentration Risk | Accounts Receivable | Sutton Bank |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |
Concentration risk, percentage | 83.00% | 92.00% | 84.00% | 93.00% |
Customer Concentration Risk | Revenue from Contract with Customer Benchmark | Largest customer |  |  |  |  |
Concentration Risk [Line Items] |  |  |  |  |
Concentration risk, percentage | 69.00% | 72.00% | 68.00% | 73.00% |

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