Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Operating revenues and earnings (losses) from unconsolidated affiliates:
Total operating revenues	$ 568,539	$ 460,511
Reconciliation of segment adjusted operating income (loss) to net income (loss) from continuing operations before income taxes:
Net income (loss)	(174,668)	(128,310)
Income (loss) from discontinued operations, net of tax		(19)
Income (loss) from continuing operations, net of tax	(174,668)	(128,329)
Income tax expense (benefit)	13,671	9,725
Income (loss) from continuing operations before income taxes	(160,997)	(118,604)
Investment income (loss)	(163)	(1,263)
Interest expense	46,910	42,975
Other, net	(80,401)	(7,346)
Adjusted operating income (loss)	(239)	(35,920)
ASSETS
Total assets	4,857,166		$ 5,525,364
Operating Segments
Operating revenues and earnings (losses) from unconsolidated affiliates:
Total operating revenues	568,539	460,511
Reconciliation of segment adjusted operating income (loss) to net income (loss) from continuing operations before income taxes:
Adjusted operating income (loss)	(239)	(35,920)
Intersegment Eliminations
Reconciliation of segment adjusted operating income (loss) to net income (loss) from continuing operations before income taxes:
Adjusted operating income (loss)	33,610	33,626
ASSETS
Total assets	720,617		1,280,198
US Segment | Operating Segments
Operating revenues and earnings (losses) from unconsolidated affiliates:
Total operating revenues	217,583	142,299
Reconciliation of segment adjusted operating income (loss) to net income (loss) from continuing operations before income taxes:
Adjusted operating income (loss)	(5,851)	(23,336)
ASSETS
Total assets	1,540,980		1,606,683
Canada Segment | Operating Segments
Operating revenues and earnings (losses) from unconsolidated affiliates:
Total operating revenues		20,989
Reconciliation of segment adjusted operating income (loss) to net income (loss) from continuing operations before income taxes:
Adjusted operating income (loss)	(19)	3,907
ASSETS
Total assets	529		1,392
International Excluding Canada | Operating Segments
Operating revenues and earnings (losses) from unconsolidated affiliates:
Total operating revenues	279,030	246,838
Reconciliation of segment adjusted operating income (loss) to net income (loss) from continuing operations before income taxes:
Adjusted operating income (loss)	(6,327)	(18,632)
ASSETS
Total assets	2,343,972		2,380,703
Drilling Solutions | Operating Segments
Operating revenues and earnings (losses) from unconsolidated affiliates:
Total operating revenues	54,182	35,706
Reconciliation of segment adjusted operating income (loss) to net income (loss) from continuing operations before income taxes:
Adjusted operating income (loss)	14,709	4,710
ASSETS
Total assets	66,696		65,899
Rig Technologies | Operating Segments
Reconciliation of segment adjusted operating income (loss) to net income (loss) from continuing operations before income taxes:
Adjusted operating income (loss)	(2,751)	$ (2,569)
ASSETS
Total assets	$ 184,372		$ 190,489