Fair Value Measurements - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Assets:
U.S. Treasury debt securities	$ 22,678	$ 141,062
Safeguarding asset for crypto	505,697	15,792
Liabilities:
Safeguarding obligation for crypto	505,697	15,792
Warrant liability—public warrants	1,642	785
U.S. Treasury debt securities
Assets:
U.S. Treasury debt securities	22,678	141,062
Fair Value, Recurring
Assets:
Safeguarding asset for crypto	505,697	15,792
Total Assets	528,375	156,854
Liabilities:
Safeguarding obligation for crypto	505,697	15,792
Contingent consideration	13,065
Total Liabilities	520,404	16,577
Fair Value, Recurring | U.S. Treasury debt securities
Assets:
U.S. Treasury debt securities	22,678	141,062
Fair Value, Recurring | Level 1
Assets:
Safeguarding asset for crypto	0	0
Total Assets	22,678	141,062
Liabilities:
Safeguarding obligation for crypto	0	0
Contingent consideration	0
Total Liabilities	1,642	785
Fair Value, Recurring | Level 1 | U.S. Treasury debt securities
Assets:
U.S. Treasury debt securities	22,678	141,062
Fair Value, Recurring | Level 2
Assets:
Safeguarding asset for crypto	505,697	15,792
Total Assets	505,697	15,792
Liabilities:
Safeguarding obligation for crypto	505,697	15,792
Contingent consideration	0
Total Liabilities	505,697	15,792
Fair Value, Recurring | Level 2 | U.S. Treasury debt securities
Assets:
U.S. Treasury debt securities	0	0
Fair Value, Recurring | Level 3
Assets:
Safeguarding asset for crypto	0	0
Total Assets	0	0
Liabilities:
Safeguarding obligation for crypto	0	0
Contingent consideration	13,065
Total Liabilities	13,065	0
Fair Value, Recurring | Level 3 | U.S. Treasury debt securities
Assets:
U.S. Treasury debt securities	0	0
Public warrants | Fair Value, Recurring
Liabilities:
Warrant liability—public warrants	1,642	785
Public warrants | Fair Value, Recurring | Level 1
Liabilities:
Warrant liability—public warrants	1,642	785
Public warrants | Fair Value, Recurring | Level 2
Liabilities:
Warrant liability—public warrants	0	0
Public warrants | Fair Value, Recurring | Level 3
Liabilities:
Warrant liability—public warrants	$ 0	$ 0