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Summary of Significant Accounting Policies - Narrative (Details) $ in Thousands		3 Months Ended			9 Months Ended	12 Months Ended
	Mar. 15, 2023 USD ($)	Mar. 31, 2024 USD ($) segment	Dec. 31, 2023 USD ($) segment	Mar. 31, 2023 USD ($)	Sep. 30, 2023 segment	Dec. 31, 2023 USD ($)
Concentration Risk [Line Items]
Restricted cash		$ 10,000	$ 10,000			$ 10,000
Allowance for credit losses		64	$ 49			49
Payment to acquire building	$ 11,500
Long-lived asset impairment						$ 2,900
Advertising costs		$ 6,000		$ 8,800
Number of operating segments \| segment		2	2
Number of reportable segments \| segment		2	2		1
Office space
Concentration Risk [Line Items]
Payment to acquire building	10,500
Useful life		39 years
Land
Concentration Risk [Line Items]
Payment to acquire building	$ 1,000
Restricted stock units
Concentration Risk [Line Items]
Vesting period		4 years
Two Developers \| Revenue \| Customer Concentration Risk
Concentration Risk [Line Items]
Concentration risk, percentage (less than)		80.00%		80.00%
Customer One \| Accounts Receivable \| Customer Concentration Risk
Concentration Risk [Line Items]
Concentration risk, percentage (less than)		18.00%				12.00%
Customer Two \| Accounts Receivable \| Customer Concentration Risk
Concentration Risk [Line Items]
Concentration risk, percentage (less than)		14.00%