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CONSOLIDATED BALANCE SHEETS (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified | Dec. 31, 2012 | Dec. 31, 2011
--- | --- | ---
Assets: |  |
Accumulated amortization on Deferred expenses | $ 24,402 | $ 22,708
Liabilities: |  |
Accretion on Deferred revenue | 44,706 | 37,485
Equity: |  |
Preferred shares, par value (in dollars per share) | $ 0.0001 | $ 0.0001
Preferred shares, authorized shares (in shares) | 100,000,000 | 100,000,000
Common shares, par value (in dollars per share) | $ 0.0001 | $ 0.0001
Common shares, authorized shares (in shares) | 400,000,000 | 400,000,000
Common shares, shares issued (in shares) | 178,616,664 | 154,938,351
Common stock, shares, outstanding (in shares) | 178,616,664 | 154,938,351
Series B | Cumulative Redeemable |  |
Equity: |  |
Preferred shares liquidation preference |  | 68,522
Preferred shares, convertible preferred, shares issued (in shares) |  | 2,740,874
Preferred shares, redeemable preferred, shares outstanding (in shares) |  | 2,740,874
Series C | Cumulative Convertible |  |
Equity: |  |
Preferred shares liquidation preference | 96,770 | 98,510
Preferred shares, convertible preferred, shares issued (in shares) | 1,935,400 | 1,970,200
Preferred shares, redeemable preferred, shares outstanding (in shares) | 1,935,400 | 1,970,200
Series D | Cumulative Redeemable |  |
Equity: |  |
Preferred shares liquidation preference | $ 155,000 | $ 155,000
Preferred shares, convertible preferred, shares issued (in shares) | 6,200,000 | 6,200,000
Preferred shares, redeemable preferred, shares outstanding (in shares) | 6,200,000 | 6,200,000

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