Marketable Securities - Fair Value of Marketable Securities by Contractual Maturity (Details) $ in Thousands	Sep. 30, 2022 USD ($)
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Amortized Cost [Abstract]
Amortized cost, due in one year or less	$ 914,706
Amortized cost, due after one year through five years	360,930
Amortized cost, due after ten years	2,786
Amortized cost	1,278,422
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Fair Value [Abstract]
Fair value, due in one year or less	909,913
Fair value, due after one year through five years	351,085
Fair value, due after ten years	2,786
Fair value	$ 1,263,784

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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