Derivative instruments and hedging activities - Summary Of Notional Amounts Of Derivative Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Derivative [Line Items]
Total forward contracts notional amount	$ 513,332	$ 383,288
British pound
Derivative [Line Items]
Total forward contracts notional amount	11,486	13,988
Chinese yuan
Derivative [Line Items]
Total forward contracts notional amount	41,395	32,970
Euro
Derivative [Line Items]
Total forward contracts notional amount	197,262	130,122
Hungarian forint
Derivative [Line Items]
Total forward contracts notional amount	99,198	95,228
Japanese yen
Derivative [Line Items]
Total forward contracts notional amount	92,429	53,527
Korean won
Derivative [Line Items]
Total forward contracts notional amount	23,670	24,728
Malaysian ringgit
Derivative [Line Items]
Total forward contracts notional amount	$ 47,892	$ 32,725