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UNAUDITED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (Parenthetical) - USD ($) $ in Thousands, shares in Millions | 6 Months Ended
--- | ---
Jun. 30, 2021 | Jun. 30, 2020
Gain associated with pensions | $ 100 |  | $ 100
Shares of affiliates comprehensive loss | 0 |  | (21,100)
Repurchase and cancellation of treasury shares | 20,495 | [1] | 16,650
Payments for Commissions | $ 30 |  |
Treasury Shares |  |  |
Stock repurchased during the period | 1.7 |  |
Repurchase and cancellation of treasury shares | $ 20,495 | [1] | $ (39,098)
[1] | During the six months ended June 30, 2021 we repurchased 1.7 million of treasury shares for a consideration of $20.5 million, inclusive of brokers commission of $0.03 million .

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- Definition Amount, after tax and reclassification adjustment, of (increase) decrease in accumulated other comprehensive income for defined benefit plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=124509347&loc=d3e637-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (i-k) -URI http://asc.fasb.org/extlink&oid=124509347&loc=SL7669646-108580 + Details
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