Condensed Consolidated Statements of Income (Unaudited) (USD $) In Thousands, except Per Share data	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Condensed Consolidated Statements of Income [Abstract]
Revenues	$ 902,621	$ 588,347	$ 2,483,379	$ 1,715,225
Costs and expenses:
Cost of sales and services	665,855	448,602	1,857,031	1,324,594
Selling, general and administrative expenses	45,430	37,142	131,902	109,479
Depreciation and amortization expense	46,929	30,410	137,318	92,088
Other operating (income) expense	(57)	1,803	2,724	1,116
Total operating expenses	758,157	517,957	2,128,975	1,527,277
Operating income	144,464	70,390	354,404	187,948
Interest expense, net of capitalized interest	(16,760)	(3,534)	(39,541)	(10,505)
Interest income	174	134	1,422	316
Equity in earnings (loss) of unconsolidated affiliates	(204)	80	(151)	144
Other income	885	17	1,515	587
Income before income taxes	128,559	67,087	317,649	178,490
Income tax expense	(36,487)	(20,609)	(88,757)	(53,988)
Net income	92,072	46,478	228,892	124,502
Less: Net income attributable to noncontrolling interest	221	132	721	436
Net income attributable to Oil States International, Inc.	$ 91,851	$ 46,346	$ 228,171	$ 124,066
Net income per share attributable to Oil States International, Inc. common stockholders
Basic	$ 1.79	$ 0.92	$ 4.46	$ 2.48
Diluted	$ 1.67	$ 0.88	$ 4.15	$ 2.37
Weighted average number of common shares outstanding:
Basic	51,264	50,282	51,144	50,108
Diluted	54,960	52,538	55,028	52,304