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Summary of significant accounting policy.

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- Definition

Amount of allowance for credit loss on accounts receivable, classified as current.

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- Definition

The carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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- Definition

Face (par) amount of debt instrument at time of issuance.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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- Definition

Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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- Definition

Period in which remaining performance obligation is expected to be recognized as revenue, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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- Definition

Percentage of remaining performance obligation to total remaining performance obligation not recognized as revenue.

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Nature of Business and Summary of Significant Accounting Policies - Narrative (Details) $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2026 USD ($) segment	Dec. 31, 2025 USD ($) segment	Sep. 30, 2025 USD ($)	May 31, 2025 USD ($)
Summary Of Significant Accounting Policy [Line Items]
Number of operating segments \| segment	2	2
Number of reportable segments \| segment	2	2
Allowance for doubtful accounts	$ 1.8	$ 3.4
Remaining performance obligations	$ 1,138.6	1,104.3
Project One \| Product Concentration Risk \| Contract Asset Balance
Summary Of Significant Accounting Policy [Line Items]
Contract asset balance (as a percent)	11.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-07-01
Summary Of Significant Accounting Policy [Line Items]
Revenue from remaining performance obligation (as a percent)	35.00%
Revenue, remaining performance obligation, expected timing of satisfaction, period	6 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-01
Summary Of Significant Accounting Policy [Line Items]
Revenue from remaining performance obligation (as a percent)	29.00%
Revenue, remaining performance obligation, expected timing of satisfaction, period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2028-01-01
Summary Of Significant Accounting Policy [Line Items]
Revenue from remaining performance obligation (as a percent)	11.00%
Revenue, remaining performance obligation, expected timing of satisfaction, period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2029-01-01
Summary Of Significant Accounting Policy [Line Items]
Revenue from remaining performance obligation (as a percent)	5.00%
Revenue, remaining performance obligation, expected timing of satisfaction, period	1 year
Convertible Senior Notes Due 2030 (Notes) \| Convertible Debt
Summary Of Significant Accounting Policy [Line Items]
Loan amount			$ 400.0	$ 400.0
Interest rate (as a percent)				0.25%
Convertible Senior Notes Due 2031 (Notes) \| Convertible Debt
Summary Of Significant Accounting Policy [Line Items]
Loan amount			$ 375.0
Convertible Senior Notes Due 2031 (Notes) \| Convertible Debt \| Class A Common Stock
Summary Of Significant Accounting Policy [Line Items]
Interest rate (as a percent)				0.00%
Balance Sheet Location [Axis]: us-gaap:OtherLiabilitiesNoncurrent
Summary Of Significant Accounting Policy [Line Items]
Asset retirement obligation	$ 2.9	$ 2.9