Fair Value	3 Months Ended
Mar. 31, 2019
Fair Value [Abstract]
Fair Value	Note 16 – Fair Value Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. A three-tier fair value hierarchy of inputs is employed to determine fair value measurements. Level 1 inputs are quoted prices (unadjusted) in active markets for identical assets and liabilities. Level 2 inputs are observable prices that are not quoted on active exchanges, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; and model-derived valuations whose inputs are observable or whose significant value drivers are observable. Level 3 inputs are unobservable inputs employed for measuring the fair value of assets or liabilities. This hierarchy requires the Company to use observable market data, when available, and to minimize the use of unobservable inputs when determining fair value. The Company’s financial instruments include cash equivalents, accounts and other receivables, accounts payable, accrued liabilities and long-term debt. The Company believes that the carrying values of these instruments approximate fair value. As of March 31, 2019, the Company’s long-term investments and derivative instruments were recorded at fair value using Level 3 inputs. The Company uses derivative instruments to manage the variability of foreign currency obligations and interest rates. The Company does not enter into derivatives for speculative purposes. The forward currency exchange contract in place as of March 31, 2019 has not been designated as an accounting hedge and, therefore, changes in fair value are recorded within the Condensed Consolidated Statements of Income. The Company has an interest rate swap agreement, with a notional amount of $150.0 million as of March 31, 2019 and December 31, 2018, to hedge a portion of its interest rate exposure on outstanding borrowings under the Credit Agreement. Under this interest rate swap agreement, the Company receives variable rate interest payments based on the one-month LIBOR rate and pays fixed rate interest payments. The fixed interest rate for the contract is 2.928%. The effect of this swap is to convert a portion of the floating rate interest expense to fixed interest rate expense. Based on the terms of the interest rate swap contract and the underlying borrowings outstanding under the Credit Agreement, the interest rate contract was determined to be highly effective, and thus qualifies and has been designated as a cash flow hedge. As such, changes in the fair value of the interest rate swap are recorded in other comprehensive income on the accompanying Condensed Consolidated Balance Sheets until earnings are affected by the variability of cash flows. The fair value of the interest rate swap was a $4.4 million liability as of March 31, 2019 and a $3.0 million liability as of December 31, 2018. During the three months ended March 31, 2019, the Company recorded unrealized loss of $1.4 million ($1.0 million net of tax) on the swap in other comprehensive income. As of December 31, 2017, the Company had an interest rate swap agreement with a notional amount of $155.3 million with a fixed interest rate of 1.4935% which was terminated in October 2018 for $3.5 million. This gain is being amortized to offset interest expense over the original term of the swap agreement. During the three months ended March 31, 2019, the Company transferred unrealized gains of $0.4 million ($0.3 million net of tax) on the terminated swap to interest expense. See Note 17.

Note 16 – Fair Value

Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. A three-tier fair value hierarchy of inputs is employed to determine fair value measurements.

Level 1 inputs are quoted prices (unadjusted) in active markets for identical assets and liabilities.
Level 2 inputs are observable prices that are not quoted on active exchanges, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; and model-derived valuations whose inputs are observable or whose significant value drivers are observable.
Level 3 inputs are unobservable inputs employed for measuring the fair value of assets or liabilities.

This hierarchy requires the Company to use observable market data, when available, and to minimize the use of unobservable inputs when determining fair value.

The Company’s financial instruments include cash equivalents, accounts and other receivables, accounts payable, accrued liabilities and long-term debt. The Company believes that the carrying values of these instruments approximate fair value. As of March 31, 2019, the Company’s long-term investments and derivative instruments were recorded at fair value using Level 3 inputs. The Company uses derivative instruments to manage the variability of foreign currency obligations and interest rates. The Company does not enter into derivatives for speculative purposes.

The forward currency exchange contract in place as of March 31, 2019 has not been designated as an accounting hedge and, therefore, changes in fair value are recorded within the Condensed Consolidated Statements of Income.

The Company has an interest rate swap agreement, with a notional amount of $150.0 million as of March 31, 2019 and December 31, 2018, to hedge a portion of its interest rate exposure on outstanding borrowings under the Credit Agreement. Under this interest rate swap agreement, the Company receives variable rate interest payments based on the one-month LIBOR rate and pays fixed rate interest payments. The fixed interest rate for the contract is 2.928%. The effect of this swap is to convert a portion of the floating rate interest expense to fixed interest rate expense. Based on the terms of the interest rate swap contract and the underlying borrowings outstanding under the Credit Agreement, the interest rate contract was determined to be highly effective, and thus qualifies and has been designated as a cash flow hedge. As such, changes in the fair value of the interest rate swap are recorded in other comprehensive income on the accompanying Condensed Consolidated Balance Sheets until earnings are affected by the variability of cash flows.

The fair value of the interest rate swap was a $4.4 million liability as of March 31, 2019 and a $3.0 million liability as of December 31, 2018. During the three months ended March 31, 2019, the Company recorded unrealized loss of $1.4 million ($1.0 million net of tax) on the swap in other comprehensive income.

As of December 31, 2017, the Company had an interest rate swap agreement with a notional amount of $155.3 million with a fixed interest rate of 1.4935% which was terminated in October 2018 for $3.5 million. This gain is being amortized to offset interest expense over the original term of the swap agreement. During the three months ended March 31, 2019, the Company transferred unrealized gains of $0.4 million ($0.3 million net of tax) on the terminated swap to interest expense. See Note 17.