Goodwill And Other Intangible Assets (Summary of Intangible Assets) (Detail) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018	Jun. 30, 2018
Intangibles with finite lives
Accumulated amortization	$ (40,029)	$ (34,130)	$ (31,562)
Intangibles with indefinite lives
Gross carrying amount	86,617	83,554	52,976
Total net carrying amount	46,588	49,424	21,414
Community banking
Intangibles with indefinite lives
Carrying amount	31,571	31,760	15,946
Trademark \| Community banking
Intangibles with indefinite lives
Carrying amount	5,800	5,800	5,800
Core deposit intangibles \| Community banking
Intangibles with finite lives
Gross carrying amount	58,423	55,366	37,272
Accumulated amortization	(32,652)	(29,406)	(27,126)
Net carrying amount	25,771	25,960	10,146
Customer list intangibles \| Specialty finance
Intangibles with finite lives
Gross carrying amount	1,964	1,958	1,964
Accumulated amortization	(1,500)	(1,436)	(1,373)
Net carrying amount	464	522	591
Customer list and other intangibles \| Wealth management
Intangibles with finite lives
Gross carrying amount	20,430	20,430	7,940
Accumulated amortization	(5,877)	(3,288)	(3,063)
Net carrying amount	$ 14,553	$ 17,142	$ 4,877

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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-Topic 350
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-Publisher FASB
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