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Leases Leases (Tables) | 9 Months Ended
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Sep. 30, 2025
Lease Disclosure [Abstract] |
Lease, Cost [Table Text Block] |
Schedule of Leases Reported on Consolidated Statement of Financial Position [Table Text Block] | The following table presents the balance and classifications of our right of use assets and lease liabilities included in our condensed consolidated balance sheets at September 30, 2025 and December 31, 2024:
(in millions) |  | Balance sheet classification |  | September 30, 2025 |  | December 31, 2024
Assets |  |  |  |  |  |
Operating lease assets |  | Operating lease right-of-use assets |  | $ | 9.6 |  |  | $ | 10.5 |
Liabilities |  |  |  |  |  |
Current |  |  |  |  |  |
Operating lease liabilities |  | Other accrued liabilities |  | $ | 1.9 |  |  | $ | 2.4 |
Noncurrent |  |  |  |  |  |
Operating lease liabilities |  | Operating lease - liabilities |  | 8.0 |  |  | 8.7 |
Total lease liabilities |  |  |  | $ | 9.9 |  |  | $ | 11.1 |
Leases, Weighted Average Remaining Lease Term [Table Text Block] | The following table presents our weighted-average remaining lease terms and weighted-average discount rates for our operating leases at September 30, 2025 and December 31, 2024:
|  | September 30, 2025 |  | December 31, 2024
Weighted-average remaining lease term (in years) |  |  |  |
Operating leases |  | 7.5 |  | 7.7
Weighted-average discount rate |  |  |  |
Operating leases |  | 3.5 | % |  | 3.5 | %
Schedule of Maturities of Leases [Table Text Block] | The following table presents the future undiscounted maturities of our operating and financing leases at September 30, 2025 and for each of the next five years and thereafter:
(in millions) |  | Operating Leases (1)
Remainder of 2025 |  | $ | 0.6 |
2026 |  | 2.0 |
2027 |  | 1.8 |
2028 |  | 1.4 |
2029 |  | 1.3 |
2030 |  | 1.1 |
Thereafter |  | 3.0 |
Total lease payments |  | 11.2 |
Less: Interest |  | (1.3) |
Present value of lease liabilities |  | $ | 9.9 |
(1) Operating lease payments include $2.0 million related to options to extend lease terms that are reasonably certain of being exercised.

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- Definition Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478964/842-20-50-4 + Details
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