Subsequent Events (Tables)

12 Months Ended

Dec. 31, 2021

Subsequent Events [Abstract]

Schedule of Dividends Payable [Table Text Block]

The General Partner's board of directors declared the following dividends/distributions at its regularly scheduled board meeting held on January 26, 2022:

Class of stock/units	Quarterly Amount per Share or Unit		Record Date	Payment Date
Common	$	0.28	February 16, 2022	February 28, 2022

Property Dispositions

In January 2022, we contributed three buildings to an unconsolidated joint venture. The joint venture financed the acquisition of these properties with a combination of third party first mortgage loans and equity contributions from our partner and we received approximately $289.7 million of net cash proceeds, including our share of the proceeds from the joint venture's first mortgage loans.

Debt Extinguishment

On January 14, 2022, we provided notice of redemption to the holders of our $300.0 million of 3.75% unsecured notes, which are scheduled to mature in December 2024. This redemption occurred on February 13, 2022 and resulted in a loss on debt extinguishment of approximately $22.0 million, which is comprised of the prepayment premium and the write-off of unamortized deferred financing costs.