Derivatives Notional Amounts - Not Designated as Hedges (Details) - Not Designated as Hedging Instrument [Member] - USD ($) $ in Thousands	3 Months Ended	6 Months Ended		12 Months Ended
	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Derivative [Line Items]
Notional Amount		$ 73,960		$ 54,750
Gain (Loss)		(723)		703
Forward exchange contracts—net
Derivative [Line Items]
Gain (Loss)	$ 967		$ 243
USD / AUD
Derivative [Line Items]
Notional Amount		5,810		6,046
Gain (Loss)		146		(159)
USD / CAD
Derivative [Line Items]
Notional Amount		15,616		8,320
Gain (Loss)		(225)		88
USD / DKK
Derivative [Line Items]
Notional Amount		8,788		8,690
Gain (Loss)		(152)		207
USD / GBP
Derivative [Line Items]
Notional Amount		19,448		16,062
Gain (Loss)		(125)		338
USD / NOK
Derivative [Line Items]
Notional Amount		9,617		9,053
Gain (Loss)		(340)		264
USD / SEK
Derivative [Line Items]
Notional Amount		2,373		0
Gain (Loss)		34		0
AUD / NZD
Derivative [Line Items]
Notional Amount		6,697		6,579
Gain (Loss)		23		(35)
AUD / THB
Derivative [Line Items]
Notional Amount		2,406		0
Gain (Loss)		(197)		0
NZD / THB
Derivative [Line Items]
Notional Amount		507		0
Gain (Loss)		(35)		0
USD / THB
Derivative [Line Items]
Notional Amount		2,076		0
Gain (Loss)		108		0
EUR / THB
Derivative [Line Items]
Notional Amount		382		0
Gain (Loss)		18		0
GBP / THB
Derivative [Line Items]
Notional Amount		240		0
Gain (Loss)		$ 22		$ 0