Accumulated Other Comprehensive Loss and Other Comprehensive (Loss) Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 02, 2022	Oct. 03, 2021	Oct. 02, 2022	Oct. 03, 2021	Jan. 02, 2022
Accumulated Foreign Currency Translation Gains (Losses) [Roll Forward]
Accumulated foreign currency translation gains (losses), beginning of period	$ (128,070)	$ (85,664)	$ (96,919)	$ (93,684)
Foreign currency translation loss	(29,021)	(9,164)	(59,518)	(4,441)
Income tax benefit (expense) on foreign currency translation gain (loss)	(45)	(15)	(58)	7
Cumulative translation adjustment recognized upon deconsolidation of subsidiary	0	0	0	3,544
Less: foreign currency translation gain (loss) attributable to non-controlling interest	(45)	(166)	596	103
Accumulated foreign currency translation gains (losses), end of period	(157,091)	(94,677)	(157,091)	(94,677)
Accumulated Amortization of Actuarial Net Losses [Roll Forward]
Accumulated pension and other post-retirement adjustments, beginning of period	(4,651)	(17,848)	(4,663)	(18,379)
Amortization of actuarial net losses	6	334	18	1,000
Income tax expense on amortization of actuarial net losses	0	68	0	(203)
Accumulated pension and other post-retirement adjustments	(4,645)	(17,582)	(4,645)	(17,582)
Accumulated other comprehensive loss	(161,736)	(112,259)	(161,736)	(112,259)	$ (101,582)
Other comprehensive (loss) income, net of tax	(29,060)	(8,913)	(59,558)	(93)
Less: other comprehensive (loss) income attributable to non-controlling interest	(45)	(166)	596	103
Other comprehensive (loss) income attributable to Masonite	$ (29,015)	$ (8,747)	$ (60,154)	$ (196)