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Fair Value Measurements (Details 5) (ARS, USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Mar. 31, 2012 | Sep. 30, 2012 item | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2012 | Jun. 30, 2012
ARS |  |  |  |  |  |  |
Changes in Level 3 assets measured at fair value on recurring basis |  |  |  |  |  |  |
Beginning balance | $ 62,311 | $ 62,311 | $ 46,283 | $ 46,283 | $ 46,283 | $ 46,283 | $ 46,283
Settlements | (16,553) |  |  |  |  |  |
Realized loss included in other income (expense), net | (2,699) |  |  |  |  |  |
Reversal of pretax impairment charges included in accumulated other comprehensive income (loss) | 3,224 |  |  |  |  |  |
Ending balance | $ 46,283 | $ 46,283 | $ 46,283 | $ 46,283 | $ 46,283 | $ 46,283 | $ 46,283
Number of auction rate securities sold or redeemed for full par value |  | 1 |  |  |  |  |
Number of auction rate securities (ARS) sold in a secondary market |  | 2 |  |  |  |  |
Number of auction rate securities (ARS) settled |  | 3 |  |  |  |  |

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- Definition The number of auction rate securities (ARS) sold in a secondary market during the period. + References No definition available. + Details
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- Definition Amount of gain (loss) recognized in the income statement for financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=25499696&loc=d3e19207-110258 + Details
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- Definition Amount before tax of reclassification adjustment from accumulated other comprehensive income for unrealized loss realized upon the write-down of available-for-sale securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=28358780&loc=d3e637-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=28358780&loc=d3e689-108580 + Details
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