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FAIR VALUE MEASUREMENTS AND FINANCIAL INSTRUMENTS - Available-for-sale Debt Securities by Contractual Maturity (Details)
$ in Thousands
Jun. 30, 2022
USD ($)
Amortized cost  
Within one year $ 1,137,726
After one year through three years 277,646
Total 1,415,372
Estimated Fair Value  
Within one year 1,136,633
After one year through three years 278,055
Total $ 1,414,688