Related-Party Transactions - Additional Information (Details) - USD ($)	3 Months Ended	9 Months Ended
Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
CEO Holds Majority Voting Interest
Related Party Transaction [Line Items]
Related party transaction expense	$ 1,200,000	$ 0	$ 1,200,000	$ 0
Payable/ outstanding to related parties	0		0		$ 0
Strategic Investors
Related Party Transaction [Line Items]
Revenue from related parties	2,700,000	1,300,000	6,900,000	2,900,000
Receivable from related parties	3,500,000		3,500,000		2,400,000
Related party transaction expense	600,000	$ 200,000	800,000	$ 300,000
Payable/ outstanding to related parties	$ 100,000		$ 100,000		$ 1,500,000

The aggregate amount of receivables to be collected from related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth, at the financial statement date. which are usually due within one year (or one business cycle).

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Carrying amount as of the balance sheet date of obligations due all related parties. For classified balance sheets, represents the current portion of such liabilities (due within one year or within the normal operating cycle if longer).

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Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with 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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