Business Segments - Financial Information Relating to Business Segments (Details) - USD ($)	3 Months Ended	12 Months Ended
	Sep. 30, 2024	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Segment Reporting Information [Line Items]
Revenues from external customers		$ 4,793,596,000	$ 5,312,246,000	$ 4,071,878,000
Selling, general and administrative		255,072,000	268,337,000	169,962,000
Depreciation, depletion, amortization and impairment		940,264,000	1,171,873,000	731,416,000
Impairment of goodwill	$ 885,000,000	0	885,240,000	0
Segment operating income (loss)		(40,830,000)	(889,737,000)	351,954,000
Other revenues		33,028,000	65,665,000	74,578,000
Total consolidated revenues		4,826,624,000	5,377,911,000	4,146,456,000
Interest income		6,649,000	5,729,000	6,122,000
Interest expense		(70,508,000)	(71,963,000)	(52,870,000)
Other income (expense)		1,698,000	(975,000)	1,898,000
Income (loss) before income taxes		(102,991,000)	(956,946,000)	307,104,000
Drilling Services
Segment Reporting Information [Line Items]
Total consolidated revenues		1,557,642,000	1,727,810,000	1,919,759,000
Drilling Products
Segment Reporting Information [Line Items]
Total consolidated revenues		343,707,000	351,651,000	134,679,000
Operating Segments
Segment Reporting Information [Line Items]
Revenues from external customers		4,793,596,000	5,312,246,000	4,071,878,000
Direct operating costs		3,634,903,000	3,878,868,000	2,768,695,000
Selling, general and administrative		89,062,000	93,919,000	52,222,000
Depreciation, depletion, amortization and impairment		918,663,000	1,142,163,000	696,009,000
Impairment of goodwill			885,240,000
Other segment items		7,230,000	(17,792,000)	(769,000)
Segment operating income (loss)		143,738,000	(670,152,000)	555,721,000
Operating Segments \| Drilling Services
Segment Reporting Information [Line Items]
Revenues from external customers		1,557,642,000	1,727,810,000	1,919,759,000
Direct operating costs		977,234,000	1,029,591,000	1,119,200,000
Selling, general and administrative		16,079,000	16,502,000	15,014,000
Depreciation, depletion, amortization and impairment		366,763,000	477,398,000	364,312,000
Impairment of goodwill			0
Other segment items		530,000	0	(769,000)
Segment operating income (loss)		197,036,000	204,319,000	422,002,000
Operating Segments \| Completion Services
Segment Reporting Information [Line Items]
Revenues from external customers		2,892,247,000	3,232,785,000	2,017,440,000
Direct operating costs		2,461,539,000	2,658,170,000	1,567,940,000
Selling, general and administrative		39,816,000	41,557,000	26,050,000
Depreciation, depletion, amortization and impairment		463,599,000	564,155,000	283,230,000
Impairment of goodwill			885,240,000
Other segment items		6,700,000	(17,792,000)	0
Segment operating income (loss)		(79,407,000)	(898,545,000)	140,220,000
Operating Segments \| Drilling Products
Segment Reporting Information [Line Items]
Revenues from external customers		343,707,000	351,651,000	134,679,000
Direct operating costs		196,130,000	191,107,000	81,555,000
Selling, general and administrative		33,167,000	35,860,000	11,158,000
Depreciation, depletion, amortization and impairment		88,301,000	100,610,000	48,467,000
Impairment of goodwill			0
Other segment items		0	0	0
Segment operating income (loss)		26,109,000	24,074,000	(6,501,000)
Other
Segment Reporting Information [Line Items]
Segment operating income (loss)		(1,907,000)	(87,000)	2,829,000
Corporate
Segment Reporting Information [Line Items]
Segment operating income (loss)		$ (182,661,000)	$ (219,498,000)	$ (206,596,000)

PATTERSON UTI ENERGY INC 10-K