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Revenue - Interest Income and Fair Value Adjustments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Disaggregation of Revenue [Line Items]
Interest income	$ 3,405	$ 9,183
Interest expense	(1,030)	(3,255)
Fair value and other adjustments, net	2,800	(9,947)
Total interest income and fair value adjustments, net	$ 5,175	(4,019)
Variable Interest Entity, Primary Beneficiary
Disaggregation of Revenue [Line Items]
Interest income		3,379
Interest expense		(569)
Fair value and other adjustments, net		(3,000)
Total interest income and fair value adjustments, net		$ (190)

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Represents the total of interest and dividend income, including any amortization and accretion (as applicable) of discounts and premiums, earned from (1) loans and leases whether held-for-sale or held-in-portfolio; (2) investment securities; (3) federal funds sold; (4) securities purchased under agreements to resell; (5) investments in banker's acceptances, commercial paper, or certificates of deposit; (6) dividend income; or (7) other investments not otherwise specified herein.

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Amount of the cost of borrowed funds accounted for as interest expense.

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