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Debt Obligations, net (Unsecured Notes Narrative) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Loss on early extinguishment of debt		$ 12,038	$ 27,724
Unsecured notes
Debt Instrument [Line Items]
Loss on early extinguishment of debt		$ 12,000	$ 26,600
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 | 4.75% Senior Notes
Debt Instrument [Line Items]
Stated interest rate	4.75%
Unsecured notes | 4.25% Senior Notes
Debt Instrument [Line Items]
Stated interest rate	4.25%
Unsecured notes | 5.50% Senior Notes
Debt Instrument [Line Items]
Stated interest rate	5.50%

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- Definition

The percentage of the principal amount of consenting notes paid as fees to note holders to obtain their consent for potential sale of net lease assets.

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- Definition

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

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- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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