INVESTMENTS - Maturity Period (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
INVESTMENTS
Amortized Cost	$ 2,014,061	$ 1,163,152
Fair Value	2,008,146	1,164,413
Commercial paper \| Less than 1 year
INVESTMENTS
Amortized Cost	174,270	90,418
Fair Value	174,271	90,419
Certificates of deposit \| Less than 1 year
INVESTMENTS
Amortized Cost	0	12,728
Fair Value	0	12,728
Municipal securities \| Less than 1 year
INVESTMENTS
Amortized Cost	3,107	674
Fair Value	3,102	675
Municipal securities \| Due 1 - 10 years
INVESTMENTS
Amortized Cost	593	1,206
Fair Value	589	1,207
U.S. government agency securities \| Less than 1 year
INVESTMENTS
Amortized Cost	62,316	0
Fair Value	62,263	0
U.S. government agency securities \| Due 1 - 10 years
INVESTMENTS
Amortized Cost	42,124	0
Fair Value	41,835	0
U.S. treasuries \| Less than 1 year
INVESTMENTS
Amortized Cost	653,881	489,007
Fair Value	652,974	489,499
U.S. treasuries \| Due 1 - 10 years
INVESTMENTS
Amortized Cost	468,616	259,613
Fair Value	465,952	259,966
Corporate bonds \| Less than 1 year
INVESTMENTS
Amortized Cost	334,849	83,639
Fair Value	334,222	83,763
Corporate bonds \| Due 1 - 10 years
INVESTMENTS
Amortized Cost	274,305	225,867
Fair Value	$ 272,938	$ 226,156

Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 10
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482907/825-10-50-10

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 11
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482907/825-10-50-11

Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 11
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482907/825-10-50-11

Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 28
-Subparagraph (c)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482907/825-10-50-28

Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2E
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2E

Name:	us-gaap_InvestmentsFairValueDisclosure
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant