Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 6,228	$ 3,513
Market value adjustments to interest rate swaps that qualify for hedge accounting treatment	(19,993)	(1,431)
Comprehensive income (loss)	(13,765)	2,082
Less: market value adjustments to interest rate swaps	585	0
Less: net (income) loss attributable to noncontrolling interest in Columbia Operating Partnership	(71)	0
Less: net (income) loss attributable to noncontrolling interest in consolidated joint venture	133	0
Comprehensive income (loss) attributable to common stockholders	$ (13,118)	$ 2,082