Derivative Instruments (Narrative) (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Feb. 28, 2021	Jan. 31, 2021	Dec. 31, 2020	Nov. 30, 2020	Oct. 31, 2020
Forecast [Member] | Foreign Exchange Contracts, Forecasted Purchases Of MPOS Devices [Member]
Derivative [Line Items]
Derivative, Notional Amount	$ 6,015	$ 6,115	$ 7,170	$ 9,819	$ 11,615
Forecast [Member] | Foreign Exchange Contract Entered, USD To Brazilian Reais [Member]
Derivative [Line Items]
Derivative, Notional Amount			65,000	76,000	$ 20,000
Forecast [Member] | Foreign Exchange Contract Entered, USD To Mexican Peso [Member]
Derivative [Line Items]
Derivative, Notional Amount	$ 10,000	$ 10,000	$ 10,000	$ 10,000
Subsequent Events [Member] | Foreign Exchange Contracts, Forecasted Purchases Of MPOS Devices [Member]
Derivative [Line Items]
Derivative, Notional Amount						$ 10,187
Subsequent Events [Member] | Foreign Exchange Contract Entered, USD To Brazilian Reais [Member]
Derivative [Line Items]
Derivative, Notional Amount						10,000
Subsequent Events [Member] | Foreign Exchange Contract Entered, USD To Mexican Peso [Member]
Derivative [Line Items]
Derivative, Notional Amount						$ 30,000