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Unaudited Condensed Consolidating Statements of Cash Flows of SandRidge Energy, Inc. and Wholly Owned Subsidiary Guarantors and Non-Guarantors (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Schedule of Condensed Consolidating Statement of Cash Flows [Line Items]
Net cash (used in) provided by operating activities	$ 121,457	$ 230,910
Cash flows from investing activities
Capital expenditures for property, plant and equipment	(421,876)	(601,841)
Proceeds from sale of assets	2,559,374	269,008
Other	(5,048)	(10,511)
Net cash provided by (used in) investing activities	2,132,450	(343,344)
Cash flows from financing activities
Repayments of borrowings	(1,115,500)	(257)
Proceeds from the sale of royalty trust units	0	98,849
Premium on debt redemption	(61,997)	0
Other	(77,443)	(66,254)
Net cash (used in) provided by financing activities	(1,254,940)	32,595
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	998,967	(79,839)
CASH AND CASH EQUIVALENTS, beginning of year	309,766	207,681
CASH AND CASH EQUIVALENTS, end of period	1,308,733	127,842
Parent
Schedule of Condensed Consolidating Statement of Cash Flows [Line Items]
Net cash (used in) provided by operating activities	2,192,056	(48,637)
Cash flows from investing activities
Capital expenditures for property, plant and equipment	0	0
Proceeds from sale of assets	0	0
Other	0	0
Net cash provided by (used in) investing activities	0	0
Cash flows from financing activities
Repayments of borrowings	(1,115,500)
Proceeds from the sale of royalty trust units		0
Premium on debt redemption	(61,997)
Other	(29,395)	(31,623)
Net cash (used in) provided by financing activities	(1,206,892)	(31,623)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	985,164	(80,260)
CASH AND CASH EQUIVALENTS, beginning of year	300,228	204,015
CASH AND CASH EQUIVALENTS, end of period	1,285,392	123,755
Guarantors
Schedule of Condensed Consolidating Statement of Cash Flows [Line Items]
Net cash (used in) provided by operating activities	(2,142,481)	202,554
Cash flows from investing activities
Capital expenditures for property, plant and equipment	(421,876)	(572,334)
Proceeds from sale of assets	2,559,371	267,001
Other	16,947	56,658
Net cash provided by (used in) investing activities	2,154,442	(248,675)
Cash flows from financing activities
Repayments of borrowings	0
Proceeds from the sale of royalty trust units		0
Premium on debt redemption	0
Other	3,208	45,973
Net cash (used in) provided by financing activities	3,208	45,973
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	15,169	(148)
CASH AND CASH EQUIVALENTS, beginning of year	922	437
CASH AND CASH EQUIVALENTS, end of period	16,091	289
Non-Guarantors
Schedule of Condensed Consolidating Statement of Cash Flows [Line Items]
Net cash (used in) provided by operating activities	68,705	78,163
Cash flows from investing activities
Capital expenditures for property, plant and equipment	0	(29,507)
Proceeds from sale of assets	3	2,007
Other	0	1
Net cash provided by (used in) investing activities	3	(27,499)
Cash flows from financing activities
Repayments of borrowings	0
Proceeds from the sale of royalty trust units		0
Premium on debt redemption	0
Other	(70,074)	(50,095)
Net cash (used in) provided by financing activities	(70,074)	(50,095)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	(1,366)	569
CASH AND CASH EQUIVALENTS, beginning of year	8,616	3,229
CASH AND CASH EQUIVALENTS, end of period	7,250	3,798
Eliminations
Schedule of Condensed Consolidating Statement of Cash Flows [Line Items]
Net cash (used in) provided by operating activities	3,177	(1,170)
Cash flows from investing activities
Capital expenditures for property, plant and equipment	0	0
Proceeds from sale of assets	0	0
Other	(21,995)	(67,170)
Net cash provided by (used in) investing activities	(21,995)	(67,170)
Cash flows from financing activities
Repayments of borrowings	0
Proceeds from the sale of royalty trust units		98,849
Premium on debt redemption	0
Other	18,818	(30,509)
Net cash (used in) provided by financing activities	18,818	68,340
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	0	0
CASH AND CASH EQUIVALENTS, beginning of year	0	0
CASH AND CASH EQUIVALENTS, end of period	$ 0	$ 0

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