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Goodwill and Other Intangibles
 3 Months Ended
Mar. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Other Intangibles Goodwill and Other Intangibles
The following tables set forth the carrying amount of goodwill and other intangible assets, net of accumulated amortization by reporting unit at the dates indicated below:
As of March 31, 2021
Banking
Business		Insurance
Agency Business		Net
Carrying
Amount
(In Thousands)
Balances not subject to amortization
Goodwill$298,611 $70,866 $369,477 
Balances subject to amortization
Insurance agency— 6,398 6,398 
Core deposits127 — 127 
Total other intangible assets127 6,398 6,525 
Total goodwill and other intangible assets$298,738 $77,264 $376,002 
As of December 31, 2020
Banking
Business		Insurance
Agency Business		Net
Carrying
Amount
(In Thousands)
Balances not subject to amortization
Goodwill$298,611 $70,866 $369,477 
Balances subject to amortization
Insurance agency— 6,899 6,899 
Core deposits158 — 158 
Total other intangible assets158 6,899 7,057 
Total goodwill and other intangible assets$298,769 $77,765 $376,534 
The Company quantitatively assesses goodwill for impairment at the reporting unit level on an annual basis or sooner if an event occurs or circumstances change which might indicate that the fair value of a reporting unit is below its carrying amount. The quantitative assessment was most recently performed as of September 30, 2020. During the three months ended December 31, 2020 and the three months ended March 31, 2021 there were no events or changes in circumstances not already considered in the Company's annual assessment. The Company considered the economic conditions for the period including the potential impact of the COVID-19 pandemic as it pertains to the goodwill above and determined that there was no indication of impairment related to goodwill as of March 31, 2021 or December 31, 2020.
Other intangible assets are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of the assets may not be recoverable. The Company also considered the impact of the COVID-19 pandemic as it pertains to these intangible assets and determined that there was no indication of impairment related to other intangible assets as of March 31, 2021 or December 31, 2020.