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v3.22.1

Senior Unsecured Notes and Secured Debt - Summary of Principal Activity (Details) $ in Thousands | 3 Months Ended
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Mar. 31, 2022 USD ($) | Mar. 31, 2021 USD ($)
Amount |  |
Debt issued | $ 5,385 | $ 0
Ending balance | 14,347,236 |
Senior unsecured notes |  |
Amount |  |
Beginning balance | 11,707,961 | 11,509,533
Debt issued | 550,000 | 750,000
Foreign currency | (26,366) | 20,059
Ending balance | $ 12,231,595 | $ 12,279,592
Weighted Avg. Interest Rate |  |
Beginning balance | 3.67% | 3.67%
Debt issued | 0.0385 | 0.0280
Foreign currency | 0.0414 | 0.0390
Ending balance | 3.69% | 3.62%
Secured debt |  |
Amount |  |
Beginning balance | $ 2,202,312 | $ 2,378,073
Debt issued | 5,385 | 0
Debt extinguished | (100,821) | (41,933)
Principal payments | (15,968) | (15,955)
Foreign currency | 24,733 | 15,987
Ending balance | $ 2,115,641 | $ 2,336,172
Weighted Avg. Interest Rate |  |
Beginning balance | 3.03% | 3.27%
Debt issued | 0.0308 | 0
Debt extinguished | 0.0421 | 0.0760
Principal payments | 0.0319 | 0.0359
Foreign currency | 0.0273 | 0.0292
Ending balance | 3.02% | 3.14%

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