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Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 25, 2021 | Dec. 26, 2020 | Dec. 28, 2019 | Sep. 02, 2021
Noncontrolling Interest [Line Items] |  |  |  |
Temporary investments | $ 1,400 | $ 13,300 |  |
Allowance for doubtful accounts | $ 2,590 | $ 1,538 |  |
Operating lease renewal term | 5 years |  |  |
Specified percentage over which unrecognized gains and losses are amortized | 10.00% |  |  |
Average remaining service period for the pension plans | 11 years 6 months |  |  |
Stock-based awards excluded from the computation of diluted earnings per share (in shares) | 0 | 10,000 |  |
Foreign currency transaction gains (losses) | $ (600) | $ (500) | $ 200 |
Retail Distribution Business |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Equity method investment, ownership percentage |  |  |  | 17.00%
Minimum |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Operating lease, lease term | 1 year |  |  |
Maximum |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Operating lease, lease term | 15 years |  |  |
Tecumseh Products Holdings LLC |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Equity method investment, ownership percentage | 50.00% |  |  |
Second Unconsolidated Affiliate |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Equity method investment, ownership percentage | 50.00% |  |  |
Buildings | Minimum |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Property, plant and equipment, useful life | 20 years |  |  |
Buildings | Maximum |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Property, plant and equipment, useful life | 40 years |  |  |
Machinery and equipment | Minimum |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Property, plant and equipment, useful life | 5 years |  |  |
Machinery and equipment | Maximum |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Property, plant and equipment, useful life | 20 years |  |  |
Jungwoo Metal Ind. Co., LTD |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Non-controlling ownership interest | 40.00% |  |  |
Mueller Middle East BSC |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Non-controlling ownership interest | 45.00% |  |  |

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