Goodwill And Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule Of Changes In The Carrying Value Of Goodwill

	Total
	(Dollars in Thousands)
Balance as of December 31, 2017	$	171,117
Adjustments	—
Balance as of December 31, 2018	171,117
Adjustments	—
Balance as of December 31, 2019	$	171,117

Schedule Of Intangible Assets With Determinable Useful Lives By Major Category

The following table summarizes acquired intangible assets with determinable useful lives by major category which are included in Other Assets on our Consolidated Balance Sheets:

	As of December 31, 2019							As of December 31, 2018
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
	(Dollars in Thousands)
Trade name	$	22,500	$	(9,861	)	$	12,639	$	22,500	$	(7,721	)	$	14,779
Technology and know-how	55,300		(29,112		)	26,188		55,300		(23,503		)	31,797
Customer related intangible	64,500		(19,473		)	45,027		64,500		(15,070		)	49,430
Total finite-lived intangible assets	$	142,300	$	(58,446	)	$	83,854	$	142,300	$	(46,294	)	$	96,006