Fair Value Measurements - Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Assets:
U.S. Treasury debt securities	$ 17,398	$ 141,062
Safeguarding asset for crypto	701,556	15,792
Liabilities:
Safeguarding obligation for crypto	701,556	15,792
Warrant liability—public warrants	2,356	785
U.S. treasury bonds
Assets:
U.S. Treasury debt securities	17,398	141,062
Fair Value, Recurring
Assets:
Safeguarding asset for crypto	701,556	15,792
Total assets	718,954	156,854
Liabilities:
Safeguarding obligation for crypto	701,556	15,792
Total liabilities	703,912	16,577
Fair Value, Recurring | U.S. treasury bonds
Assets:
U.S. Treasury debt securities	17,398	141,062
Fair Value, Recurring | Level 1
Assets:
Safeguarding asset for crypto	0	0
Total assets	17,398	141,062
Liabilities:
Safeguarding obligation for crypto	0	0
Total liabilities	2,356	785
Fair Value, Recurring | Level 1 | U.S. treasury bonds
Assets:
U.S. Treasury debt securities	17,398	141,062
Fair Value, Recurring | Level 2
Assets:
Safeguarding asset for crypto	701,556	15,792
Total assets	701,556	15,792
Liabilities:
Safeguarding obligation for crypto	701,556	15,792
Total liabilities	701,556	15,792
Fair Value, Recurring | Level 2 | U.S. treasury bonds
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
Total liabilities	0	0
Fair Value, Recurring | Level 3 | U.S. treasury bonds
Assets:
U.S. Treasury debt securities	0	0
Public Warrants | Fair Value, Recurring
Liabilities:
Warrant liability—public warrants	2,356	785
Public Warrants | Fair Value, Recurring | Level 1
Liabilities:
Warrant liability—public warrants	2,356	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