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Industry Segments (Details) (USD $) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Apr. 02, 2011 | Mar. 27, 2010 | Dec. 31, 2011 | Dec. 25, 2010 | Dec. 26, 2009
Segment Reporting Information [Line Items] |  |  |  |  |
Net Sales |  |  | $ 2,417,797,000 | $ 2,059,797,000 | $ 1,547,225,000
Cost of goods sold |  |  | 2,115,677,000 | 1,774,811,000 | 1,327,022,000
Depreciation and amortization |  |  | 36,865,000 | 40,364,000 | 41,568,000
Selling, general, and administrative expense |  |  | 135,953,000 | 131,211,000 | 116,660,000
Litigation settlement |  |  | (10,500,000) |  |
Insurance gain | (6,800,000) | (23,300,000) | 0 | (22,736,000) | 0
Impairment charges |  |  | 0 | 0 | 29,755,000
Operating income |  |  | 139,802,000 | 136,147,000 | 32,220,000
Interest expense |  |  | (11,553,000) | (11,647,000) | (9,963,000)
Other expense, net |  |  | 1,912,000 | (2,650,000) | 872,000
Income before income taxes |  |  | 130,161,000 | 121,850,000 | 23,129,000
Expenditures for long-lived assets |  |  | 25,633,000 | 20,669,000 | 13,942,000
Segment assets |  |  | 1,347,604,000 | 1,258,996,000 | 1,180,141,000
Percentage of net consolidated sales threshold constituting a major customer |  |  | 10.00% |  |
United Kingdom [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net assets of foreign operations |  |  | 112,000,000 |  |
Mexico [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net assets of foreign operations |  |  | 45,300,000 |  |
Luxembourg [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net assets of foreign operations |  |  | 47,900,000 |  |
China [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net assets of foreign operations |  |  | 27,300,000 |  |
Segment, Geographical, Groups of Countries, Group One [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net Sales |  |  | 2,417,797,000 | 2,059,797,000 | 1,547,225,000
Long-lived assets |  |  | 320,905,000 | 346,682,000 | 371,298,000
Segment, Geographical, Groups of Countries, Group One [Member] | United States [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net Sales |  |  | 1,830,001,000 | 1,567,606,000 | 1,208,757,000
Long-lived assets |  |  | 267,060,000 | 289,714,000 | 309,986,000
Segment, Geographical, Groups of Countries, Group One [Member] | United Kingdom [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net Sales |  |  | 272,809,000 | 214,643,000 | 173,223,000
Long-lived assets |  |  | 23,962,000 | 24,088,000 | 27,312,000
Segment, Geographical, Groups of Countries, Group One [Member] | Country Other [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net Sales |  |  | 314,987,000 | 277,548,000 | 165,245,000
Long-lived assets |  |  | 29,883,000 | 32,880,000 | 34,000,000
Tube and fittings [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net Sales |  |  | 1,082,150,000 | 898,615,000 | 686,102,000
Brass rod and forgings [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net Sales |  |  | 662,369,000 | 581,660,000 | 418,376,000
OEM components, tube and assemblies [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net Sales |  |  | 401,623,000 | 327,092,000 | 213,905,000
Valves and plumbing specialties [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net Sales |  |  | 217,985,000 | 204,074,000 | 198,333,000
Other products [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net Sales |  |  | 53,670,000 | 48,356,000 | 30,509,000
Plumbing and Refrigeration Segment [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Worldwide sales to one customer |  |  |  |  | 175,100,000
Net Sales |  |  | 1,330,435,000 | 1,115,614,000 | 892,071,000
Cost of goods sold |  |  | 1,139,932,000 | 951,170,000 | 744,880,000
Depreciation and amortization |  |  | 20,947,000 | 24,940,000 | 26,289,000
Selling, general, and administrative expense |  |  | 84,795,000 | 78,573,000 | 74,397,000
Litigation settlement |  |  | 0 |  |
Insurance gain |  |  |  | (22,736,000) |
Impairment charges |  |  |  |  | 19,462,000
Operating income |  |  | 84,761,000 | 83,667,000 | 27,043,000
Expenditures for long-lived assets |  |  | 12,686,000 | 13,774,000 | 7,876,000
Segment assets |  |  | 532,458,000 | 574,671,000 | 542,834,000
Single customer percentage of sales during the year (in hundredths) |  |  |  |  | 11.00%
OEM Segment [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net Sales |  |  | 1,119,796,000 | 958,855,000 | 664,088,000
Cost of goods sold |  |  | 1,007,654,000 | 837,649,000 | 590,361,000
Depreciation and amortization |  |  | 14,634,000 | 14,300,000 | 14,208,000
Selling, general, and administrative expense |  |  | 24,838,000 | 26,789,000 | 20,501,000
Litigation settlement |  |  | 0 |  |
Insurance gain |  |  |  | 0 |
Impairment charges |  |  |  |  | 10,293,000
Operating income |  |  | 72,670,000 | 80,117,000 | 28,725,000
Expenditures for long-lived assets |  |  | 12,586,000 | 6,684,000 | 6,066,000
Segment assets |  |  | 296,997,000 | 296,978,000 | 284,480,000
Corporate Elimination [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Net Sales |  |  | (32,434,000) | (14,672,000) | (8,934,000)
Cost of goods sold |  |  | (31,909,000) | (14,008,000) | (8,219,000)
Depreciation and amortization |  |  | 1,284,000 | 1,124,000 | 1,071,000
Selling, general, and administrative expense |  |  | 26,320,000 | 25,849,000 | 21,762,000
Litigation settlement |  |  | (10,500,000) |  |
Insurance gain |  |  |  | 0 |
Impairment charges |  |  |  |  | 0
Operating income |  |  | (17,629,000) | (27,637,000) | (23,548,000)
General Corporate [Member] |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Expenditures for long-lived assets |  |  | 361,000 | 241,000 | 0
Segment assets |  |  | $ 518,149,000 | $ 387,347,000 | $ 352,827,000

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