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Restructuring Charges (Schedule Of Accrued Restructuring Balances) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Restructuring Cost and Reserve [Line Items]
Beginning Balance	$ 3,956	$ 1,335
Restructuring charges	12,900	8,507
Cash Payment	(9,715)	(4,931)
Non-Cash Activity	(2,687)	(944)
Foreign Exchange Adjustments		(11)
Ending Balance	4,454	3,956	$ 1,335
2020 [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	9,069
Cash Payment	(4,384)
Non-Cash Activity	(742)
Ending Balance	3,943
2019 [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance	3,956
Restructuring charges	3,831	8,046
Cash Payment	(5,331)	(3,146)
Non-Cash Activity	(1,945)	(944)
Ending Balance	511	3,956
2018 [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance		1,200
Restructuring charges		461	4,588
Cash Payment		(1,661)
Ending Balance			1,200
2017 [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance		135
Cash Payment		(124)
Foreign Exchange Adjustments		(11)
Ending Balance			135
Severance [Member] | 2020 [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	8,171
Cash Payment	(4,182)
Non-Cash Activity	(232)
Ending Balance	3,757
Severance [Member] | 2019 [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance	3,956
Restructuring charges	(1,161)	6,449
Cash Payment	(2,484)	(2,493)
Non-Cash Activity	(72)
Ending Balance	239	3,956
Severance [Member] | 2018 [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance		282
Cash Payment		(282)
Ending Balance			282
Lease Facility Costs [Member] | 2020 [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	165
Non-Cash Activity	(127)
Ending Balance	38
Lease Facility Costs [Member] | 2019 [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	3,551
Cash Payment	(2,394)
Non-Cash Activity	(1,145)
Ending Balance	12
Other Exit Costs [Member] | 2020 [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	733
Cash Payment	(202)
Non-Cash Activity	(383)
Ending Balance	148
Other Exit Costs [Member] | 2019 [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges	1,441	1,597
Cash Payment	(453)	(653)
Non-Cash Activity	(728)	(944)
Ending Balance	$ 260
Other Exit Costs [Member] | 2018 [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance		918
Restructuring charges		461
Cash Payment		(1,379)
Ending Balance			918
Other Exit Costs [Member] | 2017 [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance		135
Cash Payment		(124)
Foreign Exchange Adjustments		$ (11)
Ending Balance			$ 135

X

- Definition

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

+ References

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