Fair Value Measurements (Details) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held for sale	$ 5.3	$ 7.1
Total Assets Measured at Fair Value	22.6	76.4
Money Market Funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents—money market funds/Certificate of deposit	17.3	67.0
Certificate of deposit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents—money market funds/Certificate of deposit		2.3
Quoted Prices in Active Markets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held for sale	0.0	0.0
Total Assets Measured at Fair Value	17.3	67.0
Quoted Prices in Active Markets (Level 1) \| Money Market Funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents—money market funds/Certificate of deposit	17.3	67.0
Quoted Prices in Active Markets (Level 1) \| Certificate of deposit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents—money market funds/Certificate of deposit		0.0
Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held for sale	5.3	7.1
Total Assets Measured at Fair Value	5.3	9.4
Other Observable Inputs (Level 2) \| Money Market Funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents—money market funds/Certificate of deposit	0.0	0.0
Other Observable Inputs (Level 2) \| Certificate of deposit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents—money market funds/Certificate of deposit		2.3
Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mortgage loans held for sale	0.0	0.0
Total Assets Measured at Fair Value	0.0	0.0
Significant Unobservable Inputs (Level 3) \| Money Market Funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents—money market funds/Certificate of deposit	$ 0.0	0.0
Significant Unobservable Inputs (Level 3) \| Certificate of deposit
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents—money market funds/Certificate of deposit		$ 0.0