Investments - Schedule of Length of Contractual Maturities (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Jun. 30, 2024
Debt Securities, Available-for-sale [Line Items]
Within 1 year, amortized cost	$ 414,182	$ 928,965
Within 1 year, fair value	414,291	927,222
Greater than 1 year, less than or equal to 5 years, amortized cost	253,076	266,830
Greater than 1 year, less than or equal to 5 years, fair value	252,393	265,862
Amortized Cost	667,258	1,195,795
Total, amortized cost	667,258	1,195,795
Fair Value	666,684	1,193,084
Certificates of deposit
Debt Securities, Available-for-sale [Line Items]
Within 1 year, amortized cost	17,327	34,468
Within 1 year, fair value	17,347	34,473
Greater than 1 year, less than or equal to 5 years, amortized cost	0	0
Greater than 1 year, less than or equal to 5 years, fair value	0	0
Amortized Cost	17,327	34,468
Fair Value	17,347	34,473
Corporate bonds
Debt Securities, Available-for-sale [Line Items]
Within 1 year, amortized cost	114,636	118,547
Within 1 year, fair value	114,625	118,039
Greater than 1 year, less than or equal to 5 years, amortized cost	89,306	125,092
Greater than 1 year, less than or equal to 5 years, fair value	89,669	124,621
Amortized Cost	203,942	243,639
Fair Value	204,294	242,660
Commercial paper
Debt Securities, Available-for-sale [Line Items]
Within 1 year, amortized cost	51,248	298,005
Within 1 year, fair value	51,293	297,846
Greater than 1 year, less than or equal to 5 years, amortized cost	0	0
Greater than 1 year, less than or equal to 5 years, fair value	0	0
Amortized Cost	51,248	298,005
Fair Value	51,293	297,846
Agency bonds
Debt Securities, Available-for-sale [Line Items]
Within 1 year, amortized cost	8,425	10,457
Within 1 year, fair value	8,438	10,416
Greater than 1 year, less than or equal to 5 years, amortized cost	4,899	4,826
Greater than 1 year, less than or equal to 5 years, fair value	4,881	4,743
Amortized Cost	13,324	15,283
Fair Value	13,319	15,159
Municipal bonds
Debt Securities, Available-for-sale [Line Items]
Within 1 year, amortized cost	674	0
Within 1 year, fair value	679	0
Greater than 1 year, less than or equal to 5 years, amortized cost	4,510	3,943
Greater than 1 year, less than or equal to 5 years, fair value	4,516	3,953
Amortized Cost	5,184	3,943
Fair Value	5,195	3,953
Non-US
Debt Securities, Available-for-sale [Line Items]
Within 1 year, amortized cost	3,161	2,150
Within 1 year, fair value	3,156	2,150
Greater than 1 year, less than or equal to 5 years, amortized cost	0	3,160
Greater than 1 year, less than or equal to 5 years, fair value	0	3,125
Amortized Cost	3,161	5,310
Fair Value	3,156	5,275
US
Debt Securities, Available-for-sale [Line Items]
Within 1 year, amortized cost	218,711	465,338
Within 1 year, fair value	218,753	464,298
Greater than 1 year, less than or equal to 5 years, amortized cost	84,088	78,083
Greater than 1 year, less than or equal to 5 years, fair value	84,276	77,750
Amortized Cost	302,799	543,421
Fair Value	303,029	542,048
Securitization notes receivable and certificates
Debt Securities, Available-for-sale [Line Items]
Within 1 year, amortized cost	0	0
Within 1 year, fair value	0	0
Greater than 1 year, less than or equal to 5 years, amortized cost	70,273	51,726
Greater than 1 year, less than or equal to 5 years, fair value	69,051	51,670
Amortized Cost	70,273	51,726
Total, amortized cost	70,273	51,726
Fair Value	$ 69,051	51,670
Commercial Paper & Agency Bonds \| Cash and cash equivalents:
Debt Securities, Available-for-sale [Line Items]
Fair Value		$ 61,500

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