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Stockholders' Equity Schedule of Accumulated Other Comprehensive Income (Loss) (Details) (USD $)
In Thousands, unless otherwise specified |
Mar. 31, 2013
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Dec. 31, 2012
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| Schedule of Available-for-sale Securities [Line Items] | ||
| Available-for-sale Securities, Gross Unrealized Gains | $ 889,179 | $ 724,696 |
| Available-for-sale Securities, Gross Unrealized Losses | (88,469) | (28,238) |
| Available-for-sale Securities, Gross Unrealized Gain (Loss) | $ 800,710 | $ 696,458 |
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- Definition
This item represents the gross unrealized gains for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The net amount of gross unrealized gains (losses) for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
This item represents the gross unrealized losses for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities. No definition available.
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- Details
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