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Borrowings - Convertible Notes, Narrative (Details)				3 Months Ended
	Mar. 31, 2023 USD ($) $ / shares	Nov. 02, 2022 USD ($) $ / shares	Jun. 07, 2019 USD ($) $ / shares	Mar. 31, 2023 USD ($) $ / shares	Mar. 14, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 09, 2022 USD ($)	Dec. 06, 2022 USD ($)	Nov. 04, 2022 USD ($)	Aug. 31, 2018 USD ($)	Aug. 30, 2018 USD ($)	Aug. 20, 2018 USD ($)
Debt Instrument [Line Items]
Face amount	$ 300,000,000			$ 300,000,000
2018 Convertible Notes
Debt Instrument [Line Items]
Increases in dividend in excess (in dollars per share) | $ / shares	$ 0.34			$ 0.34
Conversion price (in dollars per share) | $ / shares	$ 15.18		$ 15.18	15.18
Conversion rate	65.8762		65.8762
2022 Convertible Notes
Debt Instrument [Line Items]
Increases in dividend in excess (in dollars per share) | $ / shares	$ 300			300
Conversion price (in dollars per share) | $ / shares	$ 14.15	$ 14.20		14.15
Conversion rate	70.6582	70.4225
Minimum | 2018 Convertible Notes
Debt Instrument [Line Items]
Conversion price (in dollars per share) | $ / shares	$ 13.80			13.80
Minimum | 2022 Convertible Notes
Debt Instrument [Line Items]
Conversion price (in dollars per share) | $ / shares	$ 12.38			$ 12.38
Maximum | 2018 Convertible Notes
Debt Instrument [Line Items]
Conversion rate				72.4637
Maximum | 2022 Convertible Notes
Debt Instrument [Line Items]
Conversion rate				80.7754
Convertible Notes
Debt Instrument [Line Items]
Outstanding balance	$ 376,816,000			$ 376,816,000		$ 316,816,000
Convertible Notes | 2018 Convertible Notes
Debt Instrument [Line Items]
Face amount			$ 86,250,000							$ 115,000,000	$ 15,000,000	$ 100,000,000
Stated interest rate	5.75%			5.75%
Redemption as a percentage of principal				100.00%
Maximum purchase amount									$ 201,250,000
Purchase amount per $1,000 principal amount									$ 1,000
Purchase amount								$ 84,434,000
Outstanding balance							$ 116,816,000
Convertible Notes | 2022 Convertible Notes
Debt Instrument [Line Items]
Face amount		$ 200,000,000			$ 60,000,000
Stated interest rate	7.50%			7.50%
Redemption as a percentage of principal				100.00%

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