Receivables, net (Tables)

12 Months Ended

Dec. 31, 2023

Time-Sharing Transactions, Maturities of Notes Receivable, Net [Abstract]

Major Categories of Receivables

The following table presents major categories of receivables:

(in thousands)	December 31, 2023		December 31, 2022
Contracts completed and in progress:
Billed	$	343,190	$	220,809
Unbilled	119,170		120,348
Total contracts completed and in progress	462,360		341,157
Materials sales	61,808		52,182
Other	76,084		71,790
Total gross receivables	600,252		465,129
Less: allowance for credit losses	1,547		1,142
Total net receivables	$	598,705	$	463,987