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Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands | Sep. 30, 2015 | Dec. 31, 2014
--- | --- | ---
Available for sale, amortized cost | $ 1,539,192 | $ 1,272,948
Available for sale, at cost | 99,257 | 99,297
Available for sale, at cost | $ 31,137 | $ 33,174
Ordinary shares, par value | $ 0.0001 | $ 0.0001
Ordinary shares, shares authorized | 900,000,000 | 900,000,000
Ordinary Shares A |  |
Ordinary shares, shares issued | 16,748,528 | 16,331,577
Ordinary shares, shares outstanding | 13,671,818 | 13,266,762
Treasury shares, cost | 3,076,710 | 3,064,815
Ordinary Shares B |  |
Ordinary shares, shares issued | 12,061,370 | 12,061,370
Ordinary shares, shares outstanding | 12,061,370 | 12,061,370

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- Definition This item represents the cost of debt securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27161-111563 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.2) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition This item represents the cost of equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments for other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any. + References No definition available. + Details
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