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Supplemental Cash Flow Information - Net Effects of Changes in Operating Assets and Liabilities, Net, on Cash Flows from Operating Activities (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Supplemental Cash Flow Elements [Abstract]        
Accounts and notes receivable $ (189,124) $ 76,512 $ (163,942) $ 112,033
Contract assets (42,711) (150,148) (208,260) (212,426)
Inventories (2,376) (5,709) (11,864) (6,144)
Prepaid expenses and other current assets (76,963) (52,297) (55,869) (42,349)
Accounts payable and accrued expenses and other non-current liabilities 115,804 63,982 57,901 59,202
Contract liabilities (47,607) 3,595 (50,404) (25,630)
Other, net (3,857) (978) (3,225) (9,178)
Net change in operating assets and liabilities, net of non-cash transactions $ (246,834) $ (65,043) $ (435,663) $ (124,492)