INVESTMENTS (Amortized Cost and Estimated Fair Value of Debt Securities by Contractual Maturity) (Details) $ in Thousands	Jun. 30, 2021 USD ($)
Amortized Cost
One year or less	$ 20,074
Over one through five years	128,974
Over five through ten years	138,480
Over ten years	122,035
Amortized Cost	409,563
Fair Value
One year or less	20,498
Over one through five years	132,632
Over five through ten years	140,336
Over ten years	124,835
Fair Value	$ 418,301

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 sixth through tenth 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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