Revenue Recognition (Contract Liabilities) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Change In Contract With Customer, Asset And Liability [Roll Forward]
Contract Assets, Beginning balance	$ 195,598
Contract Liabilities, Current, Beginning balance	202,965
Revenue recognized that was included in contract liabilities at the beginning of the period	(9,642)	$ (17,026)
Amounts transferred from contract assets to receivables	(7,705)	12,232
Contract Assets, Ending balance	197,128	262,231
Contract Liabilities, Current, Ending balance	205,175	209,092
Short-term Contract with Customer
Change In Contract With Customer, Asset And Liability [Roll Forward]
Contract Assets, Beginning balance	195,598	277,734
Revenue recognized that was included in contract liabilities at the beginning of the period	0	0
Revenue recognized in the period in excess of billings	256,608	321,040
Billings arising during the period in excess of revenue recognized	0	0
Amounts transferred from contract assets to receivables	(246,405)	(326,634)
Other contract asset, net	(8,673)	(9,909)
Long-term Contract with Customer
Change In Contract With Customer, Asset And Liability [Roll Forward]
Contract Assets, Beginning balance	426	1,139
Revenue recognized that was included in contract liabilities at the beginning of the period	0	0
Revenue recognized in the period in excess of billings	1,659	54
Billings arising during the period in excess of revenue recognized	0	0
Amounts transferred from contract assets to receivables	(380)	(28)
Other contract asset, net	(1,671)	(86)
Contract Assets, Ending balance	34	1,079
Short-term Contract with Customer, Liability
Change In Contract With Customer, Asset And Liability [Roll Forward]
Contract Liabilities, Current, Beginning balance	202,965	194,227
Revenue recognized that was included in contract liabilities at the beginning of the period	(118,177)	(112,835)
Revenue recognized in the period in excess of billings	0	0
Billings arising during the period in excess of revenue recognized	122,502	126,591
Amounts transferred from contract assets to receivables	230	0
Other contract liability, net	(2,345)	1,109
Long-term Contract With Customer, Liability
Change In Contract With Customer, Asset And Liability [Roll Forward]
Contract Liabilities, Noncurrent, Beginning balance	464	822
Revenue recognized that was included in contract liabilities at the beginning of the period	0	0
Revenue recognized in the period in excess of billings	0	0
Billings arising during the period in excess of revenue recognized	0	0
Amounts transferred from contract assets to receivables	0	0
Other contract liability, net	(19)	(19)
Contract Liabilities, Noncurrent, Ending balance	$ 445	$ 803