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EQUITY (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2013 | Jun. 30, 2012 | Jun. 30, 2013 | Jun. 30, 2012
Changes in equity |  |  |  |
Balance at the beginning of the period |  |  | $ 1,358,321 | $ 1,193,242
Comprehensive income: |  |  |  |
Net income including non-controlling interests | 72,527 | 66,365 | 139,370 | 130,514
Other comprehensive loss | (15,904) | (26,225) | (24,436) | 3,686
Total comprehensive income (loss) | 56,623 | 40,140 | 114,934 | 134,200
Cash dividends declared - $0.40 per share and $0.34 per share for the six months ended June 30, 2013 and 2012, respectively |  |  | (33,030) | (28,429)
Cash dividends declared per share (in dollars per share) | $ 0.2 | $ 0.17 | $ 0.40 | $ 0.34
Issuance of shares under benefit plans |  |  | 23,907 | 22,133
Purchase of shares for treasury |  |  | (69,677) | (40,138)
Balance at the end of the period | 1,394,455 | 1,281,008 | 1,394,455 | 1,281,008
Shareholders' Equity |  |  |  |
Changes in equity |  |  |  |
Balance at the beginning of the period |  |  | 1,342,373 | 1,176,946
Comprehensive income: |  |  |  |
Net income including non-controlling interests |  |  | 139,412 | 130,562
Other comprehensive loss |  |  | (24,387) | 4,206
Total comprehensive income (loss) |  |  | 115,025 | 134,768
Cash dividends declared - $0.40 per share and $0.34 per share for the six months ended June 30, 2013 and 2012, respectively |  |  | (33,030) | (28,429)
Issuance of shares under benefit plans |  |  | 23,907 | 22,133
Purchase of shares for treasury |  |  | (69,677) | (40,138)
Balance at the end of the period | 1,378,598 | 1,265,280 | 1,378,598 | 1,265,280
Noncontrolling Interests |  |  |  |
Changes in equity |  |  |  |
Balance at the beginning of the period |  |  | 15,948 | 16,296
Comprehensive income: |  |  |  |
Net income including non-controlling interests |  |  | (42) | (48)
Other comprehensive loss |  |  | (49) | (520)
Total comprehensive income (loss) |  |  | (91) | (568)
Cash dividends declared - $0.40 per share and $0.34 per share for the six months ended June 30, 2013 and 2012, respectively |  |  | 0 | 0
Issuance of shares under benefit plans |  |  | 0 | 0
Purchase of shares for treasury |  |  | 0 | 0
Balance at the end of the period | $ 15,857 | $ 15,728 | $ 15,857 | $ 15,728

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