v3.26.1
Basis of Presentation - Revision of Statements of Cash Flows (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Mar. 31, 2026
Jun. 30, 2025
Mar. 31, 2025
Jun. 30, 2026
Jun. 30, 2025
Cash flows from operating activities:            
Net income (loss) $ (394,510) $ (9,538) $ (46,755) $ (7,812) $ (404,048) $ (54,566)
Deferred income tax (benefit) expense         10,419 (7,999)
Changes in assets and liabilities, net of acquisitions and dispositions of businesses:            
Accounts receivable         (170,120) (13,887)
Inventories         16,626 (7,283)
Retirement plan liabilities, net         7,066 9,717
Reserve for contracts         129,519 (6,477)
Other assets and liabilities         9,141 11,876
Net cash (used) provided by operating activities         (275,402) 28,573
Net cash used by investing activities         1,639,080 (61,242)
Net cash (used) provided by financing activities         (1,183,591) 54,128
Effect of exchange rate changes on cash and cash equivalents, including restricted cash         (2,093) 1,918
Net increase (decrease) in cash and cash equivalents, including restricted cash and cash included in Current portion of assets held-for-sale         $ 177,994 23,377
Cash and cash equivalents, including restricted cash and cash included in Current portion of assets held-for-sale, at beginning of period       90,158   90,158
Cash and cash equivalents, including restricted cash, at end of period     113,535     113,535
As Previously Reported            
Cash flows from operating activities:            
Net income (loss)     (46,549) (12,195)   (58,744)
Deferred income tax (benefit) expense           (2,387)
Changes in assets and liabilities, net of acquisitions and dispositions of businesses:            
Accounts receivable           (14,314)
Inventories           (8,300)
Retirement plan liabilities, net           9,381
Reserve for contracts           0
Other assets and liabilities           5,745
Net cash (used) provided by operating activities           28,573
Net cash used by investing activities           (61,242)
Net cash (used) provided by financing activities           54,128
Effect of exchange rate changes on cash and cash equivalents, including restricted cash           1,918
Net increase (decrease) in cash and cash equivalents, including restricted cash and cash included in Current portion of assets held-for-sale           23,377
Cash and cash equivalents, including restricted cash and cash included in Current portion of assets held-for-sale, at beginning of period       90,158   90,158
Cash and cash equivalents, including restricted cash, at end of period     113,535     113,535
Revision Adjustment            
Cash flows from operating activities:            
Net income (loss)     (206)     4,178
Deferred income tax (benefit) expense           (5,612)
Changes in assets and liabilities, net of acquisitions and dispositions of businesses:            
Accounts receivable           427
Inventories           1,017
Retirement plan liabilities, net           336
Reserve for contracts           0
Other assets and liabilities           (346)
Net cash (used) provided by operating activities           0
Net cash used by investing activities           0
Net cash (used) provided by financing activities           0
Effect of exchange rate changes on cash and cash equivalents, including restricted cash           0
Net increase (decrease) in cash and cash equivalents, including restricted cash and cash included in Current portion of assets held-for-sale           0
Cash and cash equivalents, including restricted cash and cash included in Current portion of assets held-for-sale, at beginning of period       0   0
Cash and cash equivalents, including restricted cash, at end of period     0     0
Reclassification for Discontinued Operations            
Cash flows from operating activities:            
Net income (loss)     0     0
Deferred income tax (benefit) expense           0
Changes in assets and liabilities, net of acquisitions and dispositions of businesses:            
Accounts receivable           0
Inventories           0
Retirement plan liabilities, net           0
Reserve for contracts           (6,477)
Other assets and liabilities           6,477
Net cash (used) provided by operating activities           0
Net cash used by investing activities           0
Net cash (used) provided by financing activities           0
Effect of exchange rate changes on cash and cash equivalents, including restricted cash           0
Net increase (decrease) in cash and cash equivalents, including restricted cash and cash included in Current portion of assets held-for-sale           0
Cash and cash equivalents, including restricted cash and cash included in Current portion of assets held-for-sale, at beginning of period       $ 0   0
Cash and cash equivalents, including restricted cash, at end of period     $ 0     $ 0