Non-controlling Interests (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands		12 Months Ended
	Nov. 04, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Sep. 30, 2021	Nov. 30, 2014
Noncontrolling Interest [Line Items]
Limited partner units (in shares)		90	90
Distributions to non-controlling interest holders		$ 46	$ 201	$ 346
Buyout of non-controlling interest holders		$ 0	$ 583	$ 0
OP Units
Noncontrolling Interest [Line Items]
Redeemable amount of shares (in shares)		442,014
UnityPoint Clinic Portfolio
Noncontrolling Interest [Line Items]
Buyout of non-controlling interest holders	$ 600
Non-controlling Interests
Noncontrolling Interest [Line Items]
Limited partner units (in shares)						405,908
Units issued to purchase building						$ 10,100
Units issued to fund purchase of A Building (in usd per share)						$ 25.00
Limited partner units, redemption period		1 year
Preferred units, issued (in shares)					100,000
Preferred unit, face value (in usd per share)					$ 25.00
Preferred unit issuance value					$ 2,600
Preferred units issued (in usd per share)					$ 25.78
Preferred units, redemption period		1 year