Accrued And Other Liabilities (Schedule Of Accrued Liabilities) (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Payables and Accruals [Abstract]
Compensation and benefits	$ 27,148	$ 21,139
Vendor accruals	11,466	9,734
Accrued taxes	14,927	9,840
Accrued other	7,146	4,223
Product warranty liability	2,142	2,908
Arbitration awards	0	2,256
Accrued professional fees	2,700	1,545
Royalties payable	1,220	1,450
Payable to owners of redeemable noncontrolling interests	0	10,000
Total	$ 66,749	$ 63,095