Cash, Cash Equivalents, and Restricted Cash (Schedule of Cash, Cash Equivalents and Restricted Cash) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Restricted Cash And Cash Equivalents Items [Line Items]
Cash and cash equivalents	$ 208,547	$ 143,708	$ 367,278
Restricted cash - current asset	38,129	41,959
Total cash, cash equivalents, and restricted cash	250,946	189,283	435,626	$ 342,808
Securitization Escrow Accounts [Member]
Restricted Cash And Cash Equivalents Items [Line Items]
Restricted cash - current asset	31,852	35,820	64,764
Payment, Performance Bonds, and Other [Member]
Restricted Cash And Cash Equivalents Items [Line Items]
Restricted cash - current asset	6,277	6,139	797
Surety Bonds and Workers Compensation [Member]
Restricted Cash And Cash Equivalents Items [Line Items]
Restricted cash - noncurrent asset	$ 4,270	$ 3,616	$ 2,787
Restricted Cash and Cash Equivalents, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other Assets Noncurrent	Other Assets Noncurrent	Other Assets Noncurrent