Quarterly Financial Data - Quarterly Financial Data (Unaudited) - Schedule of Selected Quarterly Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Quarterly Financial Information Disclosure [Abstract]
Net Sales	$ 259,270	$ 261,194	$ 254,311	$ 242,600	$ 243,580	$ 233,677	$ 221,872	$ 194,431	$ 1,017,375	$ 893,560
Income from operations	(44,512)	48,761	62,263	54,552	54,384	58,069	50,855	51,534	121,064	214,842	$ 106,107
Net income attributable to Green Thumb Industries Inc.	$ (51,227)	$ 9,829	$ 24,437	$ 28,939	$ 22,806	$ 20,209	$ 22,052	$ 10,369	$ 11,978	$ 75,436	$ 14,993
Net Income per share - basic	$ (0.22)	$ 0.04	$ 0.11	$ 0.12	$ 0.10	$ 0.09	$ 0.10	$ 0.05	$ 0.05	$ 0.34	$ 0.07
Net Income per share - diluted	$ (0.22)	$ 0.04	$ 0.10	$ 0.12	$ 0.10	$ 0.08	$ 0.10	$ 0.05	$ 0.05	$ 0.33	$ 0.07
Weighted average number of common shares outstanding - basic	237,208,543	237,002,873	236,783,625	235,838,947	230,916,901	226,529,671	220,323,622	216,210,429	236,713,056	223,192,326	210,988,259
Weighted average number of shares outstanding - diluted	237,208,543	237,804,799	237,762,903	238,225,420	233,927,531	230,879,437	224,843,155	221,616,157	238,080,030	226,758,882	212,531,188