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CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) shares in Thousands, $ in Thousands | Total | Common Stock [Member] | Additional Paid-in Capital [Member] | Retained Earnings [Member] | Accumulated other comprehensive loss: | Treasury Stock [Member] | Noncontrolling Interest [Member]
--- | --- | --- | --- | --- | --- | --- | ---
Balance at beginning of year (in shares) at Dec. 31, 2016 |  |  | 80,183 |  |  |  | 22,788 |
Balance at beginning of year at Dec. 31, 2016 |  |  | $ 802 | $ 273,345 | $ 1,141,831 | $ (66,956) | $ (450,338) | $ 37,753
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Issuance of shares under incentive stock option plans (in shares) |  |  |  |  |  |  | (395) |
Issuance of shares under incentive stock option plans |  |  |  | (2,118) |  |  | $ 7,828 |
Stock-based compensation expense |  |  |  | 7,450 |  |  |  |
Issuance of restricted stock (in shares) |  |  |  |  |  |  | (208) |
Issuance of restricted stock |  |  |  | (4,092) |  |  | $ 4,092 |
Net income attributable to Mueller Industries, Inc. | $ 85,598 | [1] |  |  | 85,598 |  |  |
Dividends paid or payable to stockholders of Mueller Industries, Inc. |  |  |  |  | (483,926) |  |  |
Total other comprehensive income (loss) attributable to Mueller Industries, Inc. | 17,272 |  |  |  |  | 15,900 |  |
Repurchase of common stock (in shares) |  |  |  |  |  |  | 188 |
Repurchase of common stock |  |  |  |  |  |  | $ (7,305) |
Sale of Mueller-Xingrong |  |  |  |  |  |  |  | (23,712)
Dividends paid to noncontrolling interests |  |  |  |  |  |  |  | (2,909)
Net income attributable to noncontrolling interests | (1,413) | [1] |  |  |  |  |  | 1,413
Foreign currency translation | 13,174 |  |  |  |  |  |  | 1,372
Balance at end of year (in shares) at Dec. 30, 2017 |  |  | 80,183 |  |  |  | 22,373 |
Balance at end of year at Dec. 30, 2017 |  |  | $ 802 | 274,585 | 743,503 | (51,056) | $ (445,723) | 13,917
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Issuance of shares under incentive stock option plans (in shares) |  |  |  |  |  |  | (57) |
Issuance of shares under incentive stock option plans |  |  |  | (278) |  |  | $ 1,136 |
Stock-based compensation expense |  |  |  | 8,035 |  |  |  |
Issuance of restricted stock (in shares) |  |  |  |  |  |  | (273) |
Issuance of restricted stock |  |  |  | (5,493) |  |  | $ 5,493 |
Net income attributable to Mueller Industries, Inc. | 104,459 |  |  |  | 104,459 |  |  |
Dividends paid or payable to stockholders of Mueller Industries, Inc. |  |  |  |  | (23,009) |  |  |
Reclassification of stranded effects of the Act |  |  |  |  | (556) | 556 |  |
Other adjustments |  |  |  |  | 340 |  |  |
Total other comprehensive income (loss) attributable to Mueller Industries, Inc. | (30,074) |  |  |  |  | (29,292) |  |
Repurchase of common stock (in shares) |  |  |  |  |  |  | 1,437 |
Repurchase of common stock |  |  |  |  |  |  | $ (35,146) |
Dividends paid to noncontrolling interests |  |  |  |  |  |  |  | (592)
Net income attributable to noncontrolling interests | (2,361) |  |  |  |  |  |  | 2,361
Foreign currency translation | (16,876) |  |  |  |  |  |  | (782)
Balance at end of year (in shares) at Dec. 29, 2018 |  |  | 80,183 |  |  |  | 23,480 |
Balance at end of year at Dec. 29, 2018 | 563,260 |  | $ 802 | 276,849 | 824,737 | (79,792) | $ (474,240) | 14,904
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Issuance of shares under incentive stock option plans (in shares) |  |  |  |  |  |  | (94) |
Issuance of shares under incentive stock option plans |  |  |  | (644) |  |  | $ 1,908 |
Stock-based compensation expense |  |  |  | 8,744 |  |  |  |
Issuance of restricted stock (in shares) |  |  |  |  |  |  | (314) |
Issuance of restricted stock |  |  |  | (6,340) |  |  | $ 6,340 |
Net income attributable to Mueller Industries, Inc. | 100,972 |  |  |  | 100,972 |  |  |
Dividends paid or payable to stockholders of Mueller Industries, Inc. |  |  |  |  | (22,639) |  |  |
Total other comprehensive income (loss) attributable to Mueller Industries, Inc. | 10,372 |  |  |  |  | 11,022 |  |
Repurchase of common stock (in shares) |  |  |  |  |  |  | 162 |
Repurchase of common stock |  |  |  |  |  |  | $ (4,251) |
Dividends paid to noncontrolling interests |  |  |  |  |  |  |  | (846)
Net income attributable to noncontrolling interests | (5,260) |  |  |  |  |  |  | 5,260
Foreign currency translation | 7,409 |  |  |  |  |  |  | (650)
Balance at end of year (in shares) at Dec. 28, 2019 |  |  | 80,183 |  |  |  | 23,234 |
Balance at end of year at Dec. 28, 2019 | $ 662,136 |  | $ 802 | $ 278,609 | $ 903,070 | $ (68,770) | $ (470,243) | $ 18,668
[1] | The Consolidated Statement of Income for 2017 has been adjusted to reflect the adoption of ASU 2017-07, Compensation - Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost in 2018. The components of net periodic benefit cost (income) other than the service cost component are included in other income, net in the Consolidated Statements of Income.

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- Definition Number of shares that have been repurchased during the period and are being held in treasury. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_TreasuryStockSharesAcquired
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration