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Debt Obligations, net (Unsecured Notes Narrative) (Details) - USD ($) $ in Thousands	1 Months Ended			2 Months Ended		12 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Apr. 30, 2022	Sep. 30, 2022	Aug. 31, 2022	Dec. 31, 2022	Dec. 31, 2020	Dec. 31, 2021
Debt Instrument [Line Items]
Loss (gain) on early extinguishment of debt						$ 131,200	$ 12,038
3.125% Senior Convertible Notes
Debt Instrument [Line Items]
Stated interest rate							3.125%	3.125%
Unsecured notes | Minimum
Debt Instrument [Line Items]
Percentage of principal amount of consenting notes paid as consent fees to note holders						0.75%
Unsecured notes | Maximum
Debt Instrument [Line Items]
Percentage of principal amount of consenting notes paid as consent fees to note holders						1.00%
Unsecured notes | 3.125% Senior Convertible Notes
Debt Instrument [Line Items]
Aggregate principal of debt converted and retired	$ 11,700		$ 194,000		$ 80,900
Stated interest rate	3.125%		3.125%	3.125%	3.125%	3.125%	3.125%	3.125%
Common shares issued in in conversion of convertible notes	92,011		13,750,000		3,300,000
Payments to debt holders in conjunction with the conversion and retirement of debt	$ 11,700		$ 14,000		$ 43,600
Principal amount of notes repurchased	$ 500			$ 500
Net increase in shareholders equity on conversion of convertible notes			180,600		38,200
Loss (gain) on early extinguishment of debt			$ 118,100		12,100
Unsecured notes | 4.75% Senior Notes
Debt Instrument [Line Items]
Stated interest rate			4.75%			4.75%		4.75%
Principal amount of notes repurchased			$ 7,100		14,400
Payments for repurchase of notes			7,200		14,500
Loss (gain) on early extinguishment of debt			$ 200		$ 300
Unsecured notes | 4.25% Senior Notes
Debt Instrument [Line Items]
Stated interest rate	4.25%			4.25%		4.25%		4.25%
Principal amount of notes repurchased	$ 48,000			$ 48,000
Payments for repurchase of notes	$ 48,100			48,100
Loss (gain) on early extinguishment of debt				$ 700
Unsecured notes | 5.50% Senior Notes
Debt Instrument [Line Items]
Stated interest rate		5.50%				5.50%		5.50%
Principal amount of notes repurchased		$ 53,100
Payments for repurchase of notes		50,600
Loss (gain) on early extinguishment of debt		$ (1,700)

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Contractual interest rate for funds borrowed, under the debt agreement.

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