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Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands | Total | Additional Paid-in Capital | Accumulated other comprehensive income, net of deferred income tax | Retained Earnings | Treasury Shares | Ordinary Shares A | Ordinary Shares A Treasury Shares | Ordinary Shares B
--- | --- | --- | --- | --- | --- | --- | --- | ---
Number at Dec. 31, 2013 |  |  |  |  | 3,059,371 | 16,200,406 |  | 12,061,370
Ordinary shares issued under share incentive plans |  |  |  |  |  | 94,563 |  |
A ordinary shares purchased |  |  |  |  |  |  | 5,444 |
Ordinary shares issued to directors |  |  |  |  |  | 36,608 |  |
Number at Dec. 31, 2014 |  |  |  |  | 3,064,815 | 16,331,577 |  | 12,061,370
Balance at Dec. 31, 2013 |  | $ 516,653 | $ 54,028 | $ 403,861 | $ (101,265) | $ 2 |  | $ 1
Other comprehensive income (loss): |  |  |  |  |  |  |  |
Change in unrealized holding gains (losses) |  |  | (30,299) |  |  |  |  |
Change in other than temporary impairment losses recognized in other comprehensive income |  |  | (4) |  |  |  |  |
Unrealized foreign currency translation gains (losses) |  |  | (341) |  |  |  |  |
Other comprehensive income (loss), net of taxes |  |  | (30,644) |  |  |  |  |
A ordinary shares purchased, at cost |  |  |  |  |  |  | $ (139) |
Share compensation plans |  | 2,900 |  |  |  |  |  |
Net income |  |  |  | 62,856 |  |  |  |
Tax benefit on share-based compensation expense |  | 37 |  |  |  |  |  |
Balance at Dec. 31, 2014 | $ 908,290 | 519,590 | 23,384 | 466,717 | $ (101,404) | $ 2 |  | $ 1
Ordinary shares issued under share incentive plans |  |  |  |  |  | 124,482 |  |
A ordinary shares purchased |  |  |  |  |  |  | 11,895 |
Ordinary shares issued to directors |  |  |  |  |  | 18,045 |  |
Ordinary shares issued in connection with American Reliable Acquisition |  |  |  |  |  | 267,702 |  |
Number at Jun. 30, 2015 |  |  |  |  | 3,076,710 | 16,741,806 |  | 12,061,370
Other comprehensive income (loss): |  |  |  |  |  |  |  |
Change in unrealized holding gains (losses) |  |  | (3,441) |  |  |  |  |
Change in other than temporary impairment losses recognized in other comprehensive income |  |  | (5) |  |  |  |  |
Unrealized foreign currency translation gains (losses) | 164 |  | 164 |  |  |  |  |
Other comprehensive income (loss), net of taxes | (3,282) |  | (3,282) |  |  |  |  |
A ordinary shares purchased, at cost |  |  |  |  |  |  | $ (333) |
Share compensation plans |  | 8,611 |  |  |  |  |  |
Net income | 17,911 |  |  | 17,911 |  |  |  |
Tax benefit on share-based compensation expense |  | 58 |  |  |  |  |  |
Balance at Jun. 30, 2015 | $ 931,255 | $ 528,259 | $ 20,102 | $ 484,628 | $ (101,737) | $ 2 |  | $ 1

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