Derivative Financial Instruments and Concentrations of Credit Risk	12 Months Ended
	Dec. 31, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments and Concentrations of Credit Risk	Derivative Financial Instruments and Concentrations of Credit Risk Interest Rate Swaps During the second quarter of 2016, we entered into interest rate swap agreements to hedge the interest rate risk on our then existing variable rate term loan. As a result of amending our Credit Agreement on December 19, 2017, these swaps (“Old Swaps”) no longer qualified for hedge accounting, resulting in a gain (recorded to “Other expense, net”) in 2017 of $2.7. On March 8, 2018, we extinguished the Old Swaps and entered into a new interest rate swap agreement (the “New Swaps”) to hedge the interest rate risk on the variable interest rate borrowings under our Credit Agreement. The New Swaps, which we have designated and are accounting for as cash flow hedges, had an initial notional amount of $260.0 and maturities through December 2021 and effectively convert a portion of the borrowings under our Credit Agreement to a fixed rate of 2.535%, plus the applicable margin. As of December 31, 2019, the aggregate notional amounts of the New Swaps was $247.0 and the unrealized gain (loss), net of tax, recorded in AOCI was $(1.9) and $0.2 as of December 31, 2019 and 2018, respectively. In addition, as of December 31, 2019 and 2018, the fair value of the New Swaps was $2.5 (long-term liability) and $0.2 (long-term asset), respectively. Changes in fair value for the New Swaps are reclassified into earnings as a component of interest expense, when the forecasted transaction impacts earnings. Currency Forward Contracts We manufacture and sell our products in a number of countries and, as a result, are exposed to movements in foreign currency exchange rates. Our objective is to preserve the economic value of non-functional currency-denominated cash flows and to minimize the impact of changes as a result of currency fluctuations. Our principal currency exposures relate to the South African Rand, British Pound Sterling, and Euro. From time to time, we enter into forward contracts to manage the exposure on contracts with forecasted transactions denominated in non-functional currencies and to manage the risk of transaction gains and losses associated with assets/liabilities denominated in currencies other than the functional currency of certain subsidiaries (“FX forward contracts”). None of our FX forward contracts are designated as cash flow hedges. We had FX forward contracts with an aggregate notional amount of $26.0 and $14.4 outstanding as of December 31, 2019 and 2018, respectively, with all of the $26.0 scheduled to mature in 2020. Commodity Contracts From time to time, we enter into commodity contracts to manage the exposure on forecasted purchases of commodity raw materials. The outstanding notional amounts of commodity contracts were 3.4 and 3.9 pounds of copper at December 31, 2019 and 2018, respectively. We designate and account for these contracts as cash flow hedges and, to the extent these commodity contracts are effective in offsetting the variability of the forecasted purchases, the change in fair value is included in AOCI. We reclassify AOCI associated with our commodity contracts to cost of products sold when the forecasted transaction impacts earnings. As of December 31, 2019 and 2018, the fair values of these contracts were $0.4 (current asset) and $1.0 (current liability), respectively. The unrealized gains (losses), net of taxes, recorded in AOCI were $0.3 and $(0.8) as of December 31, 2019 and 2018, respectively. We anticipate reclassifying the unrealized gain as of December 31, 2019 to income over the next 12 months. Concentrations of Credit Risk Financial instruments that potentially subject us to significant concentrations of credit risk consist of cash and equivalents, trade accounts receivable, and interest rate swap, foreign currency forward, and commodity contracts. These financial instruments, other than trade accounts receivable, are placed with high-quality financial institutions throughout the world. We periodically evaluate the credit standing of these financial institutions. We maintain cash levels in bank accounts that, at times, may exceed federally-insured limits. We have not experienced significant loss, and believe we are not exposed to significant risk of loss, in these accounts. We have credit loss exposure in the event of nonperformance by counterparties to the above financial instruments, but have no other off-balance-sheet credit risk of accounting loss. We anticipate, however, that counterparties will be able to fully satisfy their obligations under the contracts. We do not obtain collateral or other security to support financial instruments subject to credit risk, but we do monitor the credit standing of counterparties. Concentrations of credit risk arising from trade accounts receivable are due to selling to customers in a particular industry. We mitigate our credit risks by performing ongoing credit evaluations of our customers’ financial conditions and obtaining collateral, advance payments, or other security when appropriate. No one customer, or group of customers that to our knowledge are under common control, accounted for more than 10% of our revenues for any period presented.