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Summary of Significant Accounting Policies - Income Taxes - Schedule of Taxable Income Available to Common Shareholders (Details) (Parent Company [Member], USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 12 Months Ended | |||||||||
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Dec. 31, 2011
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Sep. 30, 2011
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Jun. 30, 2011
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Mar. 31, 2011
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Dec. 31, 2010
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Sep. 30, 2010
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Jun. 30, 2010
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Mar. 31, 2010
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Dec. 31, 2011
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Dec. 31, 2010
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Dec. 31, 2009
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Parent Company [Member]
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| Schedule of Taxable Income Available to Common Shareholders [Line Items] | |||||||||||
| Net Income (Loss) Attributable to Parent | $ 13,357 | $ 12,464 | $ 9,422 | $ 9,398 | $ 13,589 | $ 12,999 | $ 4,868 | $ 2,793 | $ 44,641 | $ 34,249 | $ 58,019 |
| Dividends, Preferred Stock, Cash Paid | 0 | (6,219) | (5,625) | ||||||||
| Income Tax Reconciliation, Nondeductible Expense, Depreciation and Amortization | 16,232 | 23,469 | 27,920 | ||||||||
| Income Tax Reconciliation, Disposition of Assets | (3,113) | (6,706) | (2,449) | ||||||||
| Income Tax Reconciliation, Equity in Earnings (Losses) of Unconsolidated Subsidiary | 2,482 | 1,326 | 919 | ||||||||
| Income Tax Reconciliation, Nondeductible Expense, Share-based Compensation Cost | (491) | (3,154) | (1,919) | ||||||||
| Income Tax Reconciliation, Gain on Acquisition | 0 | 0 | (26,946) | ||||||||
| Income Tax Reconciliation, Gain on Exchange of Convertible Notes | 0 | 0 | (10,285) | ||||||||
| Income Tax Reconciliation, Other Adjustments | 997 | (5,169) | 3,191 | ||||||||
| Taxable Income Available to Common Shareholders | $ 60,748 | $ 37,796 | $ 42,825 | ||||||||
| X | ||||||||||
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- Definition
Dividends, Preferred Stock, Cash Paid No definition available.
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| X | ||||||||||
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- Definition
Income Tax Reconciliation, Gain on Acquisition No definition available.
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| X | ||||||||||
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- Definition
Income Tax Reconciliation, Gain on Exchange of Convertible Notes No definition available.
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Taxable Income Available to Common Shareholders No definition available.
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| X | ||||||||||
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- Definition
The portion of the difference between total income tax expense or benefit as reported in the Income Statement and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to the disposition of assets in the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The portion of the difference between total income tax expense or benefit as reported in the Income Statement and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to the equity in earnings (losses) of unconsolidated subsidiaries recorded in the period that is exempt from income taxes under enacted tax laws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The sum of the difference between total income tax expense or benefit as reported in the Income Statement for the period and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to the different depreciation and amortization methods allowed under generally accepted accounting principles and enacted tax laws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The portion of the difference between total income tax expense or benefit as reported in the Income Statement for the period and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to differences in the deductibility of incentive stock options and other equity-based compensation costs in accordance with generally accepted accounting principles and enacted tax laws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The portion of the difference, between total income tax expense or benefit as reported in the Income Statement for the year/accounting period and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations, that is attributable to all other items not otherwise listed in the existing taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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