Revenue Recognition (Tables)

12 Months Ended

Dec. 31, 2020

Revenue from Contract with Customer [Abstract]

Summary of Company's Revenue Streams

The following table provides a summary of the Company’s noninterest income, segregated by revenue streams within and outside the scope of ASC 606 for the periods indicated:

	For the Year Ended December 31,
	2020				2019				2018
	Within Scope(1)		Out-of-Scope(2)		Within Scope(1)		Out-of-Scope(2)		Within Scope(1)		Out-of-Scope(2)
	(Dollars in thousands)
Noninterest income:
Loan servicing income	$	—	$	2,028	$	—	$	1,840	$	—	$	1,445
Service charges on deposit accounts	6,712		—		5,769		—		5,128		—
Other service fee income	1,554		—		1,438		—		902		—
Debit card interchange income	2,526		—		3,004		—		4,326		—
Earnings on bank-owned life insurance	—		7,160		—		3,486		—		3,427
Net gain from sales of loans	—		8,609		—		6,642		—		10,759
Net gain from sales of investment securities	—		13,882		—		8,571		—		1,399
Trust custodial account fees	16,653		—		—		—		—		—
Other income	3,090		9,111		1,015		3,471		1,242		2,399
Total noninterest income	$	30,535	$	40,790	$	11,226	$	24,010	$	11,598	$	19,429

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(1) Revenues from contracts with customers accounted for under ASC 606.

(2) Revenues not within the scope of ASC 606 and accounted for under other applicable GAAP requirements.