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Equity - Preferred Stock Dividends (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2013 | Mar. 31, 2012
Class of Stock [Line Items] |  |
Dividends Paid | $ 3,315 | $ 3,315
Dividends Unpaid | 10,566 | 10,566
Total | 13,881 | 13,881
8.5% Convertible perpetual preferred stock |  |
Class of Stock [Line Items] |  |
Dividends Paid | 2,815 | 2,815
Dividends Unpaid | 2,816 | 2,816
Total | 5,631 | 5,631
6.0% Convertible perpetual preferred stock |  |
Class of Stock [Line Items] |  |
Dividends Paid | 500 | 500
Dividends Unpaid | 2,500 | 2,500
Total | 3,000 | 3,000
7.0% Convertible perpetual preferred stock |  |
Class of Stock [Line Items] |  |
Dividends Paid | 0 | 0
Dividends Unpaid | 5,250 | 5,250
Total | $ 5,250 | $ 5,250

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

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

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- Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
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
Balance Type: | debit
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