Derivative Instruments, Hedging Activities and Fair Value - Derivatives Designated as Hedging Instruments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Derivative [Line Items]
Product Revenues	$ 569,820	$ 447,281	$ 1,098,675	$ 846,122
Interest Expense	(15,986)	(14,953)	(32,850)	(27,602)
Gain or (loss) reclassified from AOCI into income	(865)	(695)	(1,680)	26
Product Revenues | Interest rate swaps
Derivative [Line Items]
Gain or (loss) reclassified from AOCI into income	0	0
Product Revenues | Foreign exchange contracts
Derivative [Line Items]
Gain or (loss) reclassified from AOCI into income	(3)	332	47	1,736
Amount excluded from effectiveness testing recognized in earnings	9	13	38	196
Derivative Instruments, Loss Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing	(1)	21	0	21
Product Revenues | Cross-currency interest rate swaps
Derivative [Line Items]
Gain or (loss) reclassified from AOCI into income	0	0
Interest Expense | Interest rate swaps
Derivative [Line Items]
Gain or (loss) reclassified from AOCI into income	(862)	(732)	(1,727)	(1,110)
Interest Expense | Foreign exchange contracts
Derivative [Line Items]
Gain or (loss) reclassified from AOCI into income	0	0
Amount excluded from effectiveness testing recognized in earnings	0	0
Interest Expense | Cross-currency interest rate swaps
Derivative [Line Items]
Gain or (loss) reclassified from AOCI into income	0	(295)	0	(600)
Cost of services and products sold | Foreign currency exchange forward contracts
Derivative [Line Items]
Gain or (loss) reclassified from AOCI into income	(3)	332	47	1,736
Amount of Gain Recognized in Income on Derivatives	(740)	1,736	4,004	7,278
Product Revenues
Derivative [Line Items]
Product Revenues	$ 133,088	$ 101,638	$ 237,494	$ 208,890