Related Party Transactions - Transactions with Related Parties (Detail) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Transactions with Third Party
Total revenues	$ 47,203	$ 44,942	$ 92,738	$ 89,955
Cost of revenues	968	349	1,352	835
Rent and other fees	2,005	1,812	3,968	3,848
Interest earned from affiliate
Interest income	32	39	64	78
Revenues generated from investee accounted for under equity method	$ 400	$ 600	$ 700	$ 1,100
Popular \| Customer Concentration Risk \| Total Revenue
Interest earned from affiliate
Total percentage of revenues from Popular	41.00%	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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
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The aggregate cost of goods produced and sold and services rendered during the reporting period.

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The amount of revenue from sale of goods and services reduced by sales returns, allowances, and discounts reported by an equity method investment of the entity.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Amount of interest income earned from interest-bearing assets owed to the entity by related party.

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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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