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Cash, Cash Equivalents, and Restricted Cash (Schedule of Cash, Cash Equivalents and Restricted Cash) (Details) - USD ($) $ in Thousands | Jun. 30, 2023 | Dec. 31, 2022 | Jun. 30, 2022 | Dec. 31, 2021
--- | --- | --- | --- | ---
Restricted Cash And Cash Equivalents Items [Line Items] |  |  |  |
Cash and cash equivalents | $ 179,169 | $ 143,708 |  |
Restricted cash - current asset | 72,077 | 41,959 |  |
Total cash, cash equivalents, and restricted cash | 255,509 | 189,283 | $ 250,978 | $ 435,626
Securitization Escrow Accounts [Member] |  |  |  |
Restricted Cash And Cash Equivalents Items [Line Items] |  |  |  |
Restricted cash - current asset | 66,252 | 35,820 |  |
Payment, Performance Bonds, and Other [Member] |  |  |  |
Restricted Cash And Cash Equivalents Items [Line Items] |  |  |  |
Restricted cash - current asset | 5,825 | 6,139 |  |
Surety Bonds and Workers Compensation [Member] |  |  |  |
Restricted Cash And Cash Equivalents Items [Line Items] |  |  |  |
Restricted cash - noncurrent asset | $ 4,263 | $ 3,616 |  |
Restricted Cash and Cash Equivalents, Noncurrent, Statement of Financial Position [Extensible Enumeration] | Other Assets Noncurrent |  |  |

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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(1)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483467/210-10-45-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-4 + Details
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