Investment in Unconsolidated Affiliates - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended			60 Months Ended
	Dec. 26, 2020	Sep. 26, 2020	Jun. 27, 2020	Mar. 28, 2020	Dec. 28, 2019	Sep. 28, 2019	Jun. 29, 2019	Mar. 30, 2019	Dec. 26, 2020	Dec. 28, 2019	Dec. 29, 2018	Dec. 26, 2020
Schedule of Equity Method Investments [Line Items]
Net gains (losses) from unconsolidated affiliates	$ 37,254	$ 43,957	$ 28,487	$ 33,951	$ 29,973	$ 30,444	$ 28,676	$ 17,139	$ 143,649	$ 106,232	$ 106,820
Tecumseh Products Holdings LLC [Member]
Schedule of Equity Method Investments [Line Items]
Interest in joint venture	50.00%								50.00%			50.00%
Net gains (losses) from unconsolidated affiliates									$ (10,400)	(22,000)
Second Unconsolidated Affiliate [Member]
Schedule of Equity Method Investments [Line Items]
Interest in joint venture	50.00%								50.00%			50.00%
Cayan Ventures and Bahrain Mumtalakat Holding Company [Member]
Schedule of Equity Method Investments [Line Items]
Interest in joint venture	40.00%								40.00%			40.00%
Cash invested in joint venture												$ 5,000
Mueller Middle East BSC [Member]
Schedule of Equity Method Investments [Line Items]
Interest in joint venture	40.00%								40.00%			40.00%
Net gains (losses) from unconsolidated affiliates									$ 200	$ (2,600)
Sales to subsidiaries									$ 37,400