Related Party Transactions - Transactions with Related Parties (Detail) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Related Party Transaction [Line Items]
Total revenues	$ 209,053	$ 188,060	$ 177,213
Cost of revenues	5,094	3,422	2,929
Rent and other fees	8,519	8,046	7,803
Interest earned from an affiliate
Interest income	161	147	154
Earnings of equity method investment	936	692	604
Popular
Interest earned from an affiliate
Earnings of equity method investment	$ 1,100	$ 1,300	$ 1,800
Popular \| Customer Concentration Risk \| Total Revenue
Interest earned from an affiliate
Total percentage of revenues from Popular	43.00%	41.00%	43.00%

Interest earned from and charged by affiliates.

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Rent And Other Fees Paid To Related Party

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

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Amount of interest income earned from interest-bearing assets owed to the entity by related party.

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Direct costs arising from transactions with related parties who are not affiliates or joint Ventures. These costs are categorized as cost of goods sold.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

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