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Equity - Preferred Stock Dividends (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Class of Stock [Line Items] |  |  |
Dividends Paid | $ 38,953 | $ 39,011 | $ 20,079
Dividends Unpaid | 16,572 | 16,572 | 17,363
Total | 55,525 | 55,583 | 37,442
8.5% Convertible perpetual preferred stock |  |  |
Class of Stock [Line Items] |  |  |
Dividends Paid | 14,078 | 14,078 | 14,079
Dividends Unpaid | 8,447 | 8,447 | 8,446
Total | 22,525 | 22,525 | 22,525
6.0% Convertible perpetual preferred stock |  |  |
Class of Stock [Line Items] |  |  |
Dividends Paid | 6,500 | 6,500 | 6,000
Dividends Unpaid | 5,500 | 5,500 | 6,000
Total | 12,000 | 12,000 | 12,000
7.0% Convertible perpetual preferred stock |  |  |
Class of Stock [Line Items] |  |  |
Dividends Paid | 18,375 | 18,433 | 0
Dividends Unpaid | 2,625 | 2,625 | 2,917
Total | $ 21,000 | $ 21,058 | $ 2,917

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- Definition Preferred Dividends Accrued Not Yet Paid + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Preferred Dividends Paid + References No definition available. + Details
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Namespace Prefix: | sd_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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- Details
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Data Type: | xbrli:stringItemType
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Period Type: | duration

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- Definition The amount of preferred stock dividends that is an adjustment to net income apportioned to common stockholders. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
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