public function getPriceOffsets()
    {
        $currencyOffsets = SaleOffsetCurrencyQuery::create()->filterBySaleId($this->getId())->find();

        $offsetList = [];

        /** @var SaleOffsetCurrency $currencyOffset */
        foreach ($currencyOffsets as $currencyOffset) {
            $offsetList[$currencyOffset->getCurrencyId()] = $currencyOffset->getPriceOffsetValue();
        }

        return $offsetList;
    }