Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Statement of Comprehensive Income [Abstract]
Net income	$ 49,649	$ 42,731	$ 194,074	$ 141,258
Other comprehensive loss:
Loss on interest rate swaps	(2,773)	(28,513)	(20,775)	(24,404)
Other comprehensive loss	(2,773)	(28,513)	(20,775)	(24,404)
Comprehensive income	46,876	14,218	173,299	116,854
Income attributable to noncontrolling interest	(1,013)	(875)	(4,035)	(2,992)
Other comprehensive loss attributable to noncontrolling interest	55	605	432	517
Comprehensive income attributable to STAG Industrial, Inc.	$ 45,918	$ 13,948	$ 169,696	$ 114,379