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Business Combinations, Sale and Deconsolidation of Subsidiaries, and Noncontrolling Interest (Details 3) (USD $)
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3 Months Ended | 12 Months Ended | 1 Months Ended | 3 Months Ended | 0 Months Ended | |||
|---|---|---|---|---|---|---|---|---|
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Jun. 30, 2012
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Sep. 30, 2011
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Jun. 30, 2011
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Dec. 31, 2012
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Dec. 31, 2011
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Jun. 30, 2011
European Acquisition Partnership
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Jun. 30, 2012
Railroad Operation
Special Situations Platform
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Aug. 31, 2011
Short-line rail services and transload facility
Special Situations Platform
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| Business Combination - Portfolio Asset Acquisition & Resolution Business Segment | ||||||||
| Cost of acquisition | $ 600,000 | |||||||
| Ownership interest in acquired entity (as a percent) | 100.00% | |||||||
| Portfolio assets acquired | 2,700,000 | |||||||
| Notes payable and accrued liabilities acquired | 1,700,000 | |||||||
| Intercompany notes payable that were eliminated in consolidation with the entity's consolidated financial statements | 900,000 | |||||||
| Property and equipment | 2,800,000 | 2,100,000 | ||||||
| Trade receivables | 500,000 | |||||||
| Various other assets | 200,000 | |||||||
| Purchase price | 2,500,000 | 2,100,000 | ||||||
| Intangible assets | 200,000 | |||||||
| Gain on business combinations | $ 935,000 | $ 155,000 | $ 278,000 | $ 935,000 | $ 433,000 | $ 300,000 | $ 900,000 | $ 200,000 |