Multiemployer Benefit Plans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Multiemployer Benefit Plans
Multiemployer plans contributions represent more than 5% of total employer contributions	true	false	false
Multiemployer Pension Plans
Multiemployer Benefit Plans
Multiemployer plan, period contributions	$ 19,851	$ 7,049	$ 10,793
Multiemployer Health Plans
Multiemployer Benefit Plans
Multiemployer plan, period contributions	$ 23,431	$ 26,938	$ 32,407