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Segment Information - Schedule of Total Revenue by Segment and Reconciliation to Consolidated Total Revenue (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($) segment	Dec. 31, 2020 USD ($) segment	Dec. 31, 2019 USD ($)
Segment Reporting, Revenue Reconciling Item [Line Items]
Number of operating segments | segment	3	2
Number of reportable segments | segment	3	2
Total revenue	$ 5,307,111	$ 5,314,787	$ 5,125,657
CSB
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenue	4,146,028	4,325,189	4,080,347
Commercial
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenue	1,113,732	989,598	1,045,310
Solar
Segment Reporting, Revenue Reconciling Item [Line Items]
Total revenue	$ 47,351	$ 0	$ 0

X

- 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.

+ References

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-Publisher FASB
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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