Benefit Plans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2022	Dec. 31, 2021	Jun. 30, 2021
Multiemployer Plans [Line Items]
Plan contributions	$ 10,091		$ 9,145		$ 9,176
Employee contribution limit per calendar year	15.00%
Employer matching contribution, percent of match	100.00%		100.00%		100.00%
Percentage of eligible compensation matched by employer	4.00%		4.00%		4.00%
Matching contribution	$ 1,800		$ 1,500		$ 1,500
Pension Plan
Multiemployer Plans [Line Items]
Multiemployer plans, surcharge	No
Plan contributions	$ 2,111	$ 317,900	1,952	$ 305,700	1,994	$ 290,100
Multiemployer plans, contributions by employer, percent	5.00%
Health Plan
Multiemployer Plans [Line Items]
Plan contributions	$ 7,191	$ 1,900,000	6,386	$ 1,600,000	6,333	$ 1,500,000
Multiemployer plans, contributions by employer, percent	5.00%
Other plans
Multiemployer Plans [Line Items]
Plan contributions	$ 789		$ 807		$ 849