Revenue from Contracts with Customers

The following table summarizes total revenues as presented in the Consolidated Statements of Income and the related amounts which are from contracts with customers within the scope of Topic 606. As shown below, a substantial portion of our revenues are specifically excluded from the scope of Topic 606.



Years ended December 31,	2018				2017				2016
(Dollars in thousands)	As reported in Consolidated Statements of Income		Revenue from contracts in scope of Topic 606		As reported in Consolidated Statements of Income		Revenue from contracts in scope of Topic 606		As reported in Consolidated Statements of Income		Revenue from contracts in scope of Topic 606
Net interest income		$132,290		$—		$119,531		$—		$110,478		$—
Noninterest income:
Asset-based wealth management revenues	37,343		37,343		38,125		38,125		36,139		36,139
Transaction-based wealth management revenues	998		998		1,221		1,221		1,430		1,430
Total wealth management revenues	38,341		38,341		39,346		39,346		37,569		37,569
Mortgage banking revenues	10,381		—		11,392		—		13,183		—
Service charges on deposit accounts	3,628		3,628		3,672		3,672		3,702		3,702
Card interchange fees	3,768		3,768		3,502		3,502		3,385		3,385
Income from bank-owned life insurance	2,196		—		2,161		—		2,659		—
Loan related derivative income	2,461		—		3,214		—		3,243		—
Other income	1,339		1,329		1,522		1,469		1,388		1,388
Total noninterest income	62,114		47,066		64,809		47,989		65,129		46,044
Total revenues		$194,404		$47,066		$184,340		$47,989		$175,607		$46,044

The following table presents revenue from contracts with customers based on the timing of revenue recognition:



(Dollars in thousands)
Years ended December 31,	2018		2017		2016
Revenue recognized at a point in time:
Card interchange fees		$3,768		$3,502		$3,385
Service charges on deposit accounts	2,802		2,899		2,914
Other income	958		1,122		1,062
Revenue recognized over time:
Wealth management revenues	38,341		39,346		37,569
Service charges on deposit accounts	826		773		788
Other income	371		347		326
Total revenues from contracts in scope of Topic 606		$47,066		$47,989		$46,044

Receivables primarily consist of amounts due from customers for wealth management services performed for which the Corporation’s performance obligations have been fully satisfied. Receivables amounted to $4.8 million and $5.7 million, respectively, at December 31, 2018 and 2017 and were included in other assets in the Consolidated Balance Sheets.

Deferred revenues, which are considered contract liabilities under Topic 606, represent advance consideration received from customers for which the Corporation has a remaining performance obligation to fulfill. Contract liabilities are recognized as revenue over the life of the contract as the performance obligations are satisfied. The balances of contract liabilities were insignificant at both December 31, 2018 and 2017 and were included in other liabilities in the Consolidated Balance Sheets.

For commissions and incentives that are in-scope of Topic 606, such as those paid to employees in our wealth management services and commercial banking segments in order to obtain customer contracts, contract cost assets are established. The contract cost assets are capitalized and amortized over the estimated useful life that the asset is expected to generate benefits. The carrying value of contract cost assets at December 31, 2018 amounted to $458 thousand and were included in other assets in the Consolidated Balance Sheets.