Derivative Instruments and Hedging Activity	12 Months Ended
Dec. 31, 2018
Derivative Instruments and Hedging Activity [Abstract]
Derivative Instruments and Hedging Activity	5. Derivative Instruments and Hedging Activity The Company may use derivative instruments for the purpose of hedging currency, commodity, and interest rate exposures, which exist as part of ongoing business operations. As a policy, the Company does not engage in speculative or leveraged transactions, nor does the Company hold or issue financial instruments for trading purposes. Hedge effectiveness is determined by how closely the changes in the fair value of the hedging instrument offset the changes in the fair value or cash flows of the hedged transaction. Hedge accounting, which generally results in the deferral of derivative gains and losses until such time as the underlying transaction is recognized in net earnings, is permitted only if the hedging relationship is expected to be highly effective at the inception of the transaction and on an ongoing basis. The Company manages its exposure to foreign exchange risk by the use of forward exchange contracts to reduce the effect of fluctuating foreign currencies on non-functional currency sales, purchases, and other known foreign currency exposures. These forward exchange contracts generally have maturities of less than 18 months. The Company also uses certain debt denominated in foreign currencies to manage the net asset positions of the Company’s foreign subsidiaries. The Company’s primary hedging activities and their accounting treatment are summarized below: Forward Exchange Contracts Certain forward exchange contracts have been designated as cash flow hedges. The Company had $76.0 million and $44.9 million of forward exchange contracts, designated as cash flow hedges, outstanding as of December 31, 2018 and 2017, respectively. As of December 31, 2018, the amount deferred in OCI was $0.8 million. For the years ended December 31, 2018 and 2017, the amounts reclassified into net earnings in the Company’s Consolidated Statement of Earnings that offset the earnings impact of the related non-functional asset or liability hedged in the same period were not material. In addition, the Company utilizes forward exchange contracts that are not designated as cash flow hedges and the results of these transactions are not material to the financial statements. Net Investment Hedges The Company has certain debt denominated in Euros, Swiss Francs and British Pounds. These debt instruments have been designated as partial hedges of the Company’s Euro, Swiss Franc, and British Pound net asset positions. Changes in the fair value of this debt attributable to changes in the spot foreign exchange rate are recorded in foreign currency translation in OCI. As of December 31, 2018 and 2017, the total value of the Company’s Euro, Swiss Franc and British Pound debt designated as net investment hedges was $366.5 million and $261.9 million, respectively. The impact of foreign exchange rates on these debt instruments has decreased debt by $13.7 million and increased debt by $28.9 million for the years ended December 31, 2018 and 2017, respectively. These amounts have been recorded as foreign currency translation in OCI. Concentrations of Credit Risk Counterparties to forward exchange contracts consist of large international financial institutions. While these counterparties may expose the Company to potential losses due to the credit risk of non-performance, losses are not anticipated. Concentrations of credit risk with respect to trade accounts receivable are limited by the large number of customers, generally short payment terms and their dispersion across geographic areas.

5. Derivative Instruments and Hedging Activity

The Company may use derivative instruments for the purpose of hedging currency, commodity, and interest rate exposures, which exist as part of ongoing business operations. As a policy, the Company does not engage in speculative or leveraged transactions, nor does the Company hold or issue financial instruments for trading purposes. Hedge effectiveness is determined by how closely the changes in the fair value of the hedging instrument offset the changes in the fair value or cash flows of the hedged transaction. Hedge accounting, which generally results in the deferral of derivative gains and losses until such time as the underlying transaction is recognized in net earnings, is permitted only if the hedging relationship is expected to be highly effective at the inception of the transaction and on an ongoing basis.

The Company manages its exposure to foreign exchange risk by the use of forward exchange contracts to reduce the effect of fluctuating foreign currencies on non-functional currency sales, purchases, and other known foreign currency exposures. These forward exchange contracts generally have maturities of less than 18 months. The Company also uses certain debt denominated in foreign currencies to manage the net asset positions of the Company’s foreign subsidiaries. The Company’s primary hedging activities and their accounting treatment are summarized below:

Forward Exchange Contracts

Certain forward exchange contracts have been designated as cash flow hedges. The Company had $76.0 million and $44.9 million of forward exchange contracts, designated as cash flow hedges, outstanding as of December 31, 2018 and 2017, respectively. As of December 31, 2018, the amount deferred in OCI was $0.8 million. For the years ended December 31, 2018 and 2017, the amounts reclassified into net earnings in the Company’s Consolidated Statement of Earnings that offset the earnings impact of the related non-functional asset or liability hedged in the same period were not material. In addition, the Company utilizes forward exchange contracts that are not designated as cash flow hedges and the results of these transactions are not material to the financial statements.

Net Investment Hedges

The Company has certain debt denominated in Euros, Swiss Francs and British Pounds. These debt instruments have been designated as partial hedges of the Company’s Euro, Swiss Franc, and British Pound net asset positions. Changes in the fair value of this debt attributable to changes in the spot foreign exchange rate are recorded in foreign currency translation in OCI. As of December 31, 2018 and 2017, the total value of the Company’s Euro, Swiss Franc and British Pound debt designated as net investment hedges was $366.5 million and $261.9 million, respectively. The impact of foreign exchange rates on these debt instruments has decreased debt by $13.7 million and increased debt by $28.9 million for the years ended December 31, 2018 and 2017, respectively. These amounts have been recorded as foreign currency translation in OCI.

Concentrations of Credit Risk

Counterparties to forward exchange contracts consist of large international financial institutions. While these counterparties may expose the Company to potential losses due to the credit risk of non-performance, losses are not anticipated. Concentrations of credit risk with respect to trade accounts receivable are limited by the large number of customers, generally short payment terms and their dispersion across geographic areas.