Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 29, 2019	Dec. 30, 2018	Dec. 31, 2017
Statement of Comprehensive Income [Abstract]
Net sales	$ 2,176,683	$ 2,170,103	$ 2,032,925
Cost of goods sold	1,699,000	1,734,797	1,625,942
Gross profit	477,683	435,306	406,983
Selling, general and administration expenses	310,567	266,193	247,917
Restructuring costs	9,776	1,624	850
Asset impairment	13,767	5,243	0
Loss on disposal of subsidiaries	14,260	0	212
Operating income	129,313	162,246	158,004
Interest expense, net	46,489	39,008	30,153
Loss on extinguishment of debt	14,523	5,414	0
Other expense (income), net	(1,953)	2,533	1,570
Income before income tax expense	66,348	120,357	129,421
Income tax expense (benefit)	17,309	23,813	(27,560)
Net income	49,039	96,544	156,981
Less: net income attributable to non-controlling interests	4,437	3,834	5,242
Net income attributable to Masonite	$ 44,602	$ 92,710	$ 151,739
Earnings (loss) per common share attributable to Masonite:
Basic earnings per common share attributable to Masonite (in dollars per share)	$ 1.77	$ 3.38	$ 5.18
Diluted earnings per common share attributable to Masonite (in dollars per share)	$ 1.75	$ 3.33	$ 5.09
Other comprehensive income (loss):
Net income	$ 49,039	$ 96,544	$ 156,981
Foreign currency translation gain (loss)	16,912	(40,880)	38,970
Pension and other post-retirement adjustment	962	(4,754)	529
Pension settlement charges	5,651	0	0
Amortization of actuarial net losses	1,798	1,291	1,113
Income tax (expense) benefit related to other comprehensive income (loss)	(2,230)	742	(1,026)
Other comprehensive income (loss), net of tax:	23,093	(43,601)	39,586
Comprehensive income	72,132	52,943	196,567
Less: comprehensive income attributable to non-controlling interests	4,780	3,000	5,994
Comprehensive income attributable to Masonite	$ 67,352	$ 49,943	$ 190,573