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Business Segment Information (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2013 | Sep. 28, 2013 | Jun. 29, 2013 | Mar. 30, 2013 | Dec. 31, 2012 | Sep. 29, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Entity-Wide Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Number of operating segments |  |  |  |  |  |  |  |  | 2 |  |
Number of reportable segments |  |  |  |  |  |  |  |  | 1 |  |
Product sales |  |  |  |  |  |  |  |  | $ 1,312,503 | $ 1,280,507 | $ 1,322,136
Service sales |  |  |  |  |  |  |  |  | 591,715 | 563,134 | 529,048
Total net sales | 565,448 | 457,317 | 451,115 | 430,338 | 521,766 | 449,952 | 451,465 | 420,458 | 1,904,218 | 1,843,641 | 1,851,184
Maximum percentage of net sales to an individual customer |  |  |  |  |  |  |  |  | 2.00% | 2.00% | 2.00%
Long-lived assets | 324,932 |  |  |  | 273,279 |  |  |  | 324,932 | 273,279 |
United States [Member] |  |  |  |  |  |  |  |  |  |  |
Entity-Wide Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total net sales |  |  |  |  |  |  |  |  | 557,734 | 531,912 | 530,606
Long-lived assets | 174,143 |  |  |  | 173,932 |  |  |  | 174,143 | 173,932 |
Europe [Member] |  |  |  |  |  |  |  |  |  |  |
Entity-Wide Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total net sales |  |  |  |  |  |  |  |  | 573,786 | 549,341 | 574,770
Long-lived assets | 138,962 |  |  |  | 89,389 |  |  |  | 138,962 | 89,389 |
China [Member] |  |  |  |  |  |  |  |  |  |  |
Entity-Wide Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total net sales |  |  |  |  |  |  |  |  | 240,535 | 212,701 | 175,409
Japan [Member] |  |  |  |  |  |  |  |  |  |  |
Entity-Wide Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total net sales |  |  |  |  |  |  |  |  | 170,115 | 207,340 | 211,893
Asia Other [Member] |  |  |  |  |  |  |  |  |  |  |
Entity-Wide Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total net sales |  |  |  |  |  |  |  |  | 216,229 | 215,612 | 222,082
Total Asia [Member] |  |  |  |  |  |  |  |  |  |  |
Entity-Wide Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total net sales |  |  |  |  |  |  |  |  | 626,879 | 635,653 | 609,384
Long-lived assets | 10,412 |  |  |  | 8,467 |  |  |  | 10,412 | 8,467 |
Other Geographic Area [Member] |  |  |  |  |  |  |  |  |  |  |
Entity-Wide Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total net sales |  |  |  |  |  |  |  |  | 145,819 | 126,735 | 136,424
Long-lived assets | 1,415 |  |  |  | 1,491 |  |  |  | 1,415 | 1,491 |
Waters instrument systems [Member] |  |  |  |  |  |  |  |  |  |  |
Entity-Wide Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Product sales |  |  |  |  |  |  |  |  | 840,608 | 828,458 | 878,367
Chemistry [Member] |  |  |  |  |  |  |  |  |  |  |
Entity-Wide Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Product sales |  |  |  |  |  |  |  |  | 304,130 | 294,787 | 292,506
TA instrument systems [Member] |  |  |  |  |  |  |  |  |  |  |
Entity-Wide Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Product sales |  |  |  |  |  |  |  |  | 167,765 | 157,262 | 151,263
Waters service [Member] |  |  |  |  |  |  |  |  |  |  |
Entity-Wide Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Service sales |  |  |  |  |  |  |  |  | 532,323 | 509,412 | 480,553
TA service [Member] |  |  |  |  |  |  |  |  |  |  |
Entity-Wide Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Service sales |  |  |  |  |  |  |  |  | $ 59,392 | $ 53,722 | $ 48,495

X
- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. + References No definition available. + Details
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- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. + References No definition available. + Details
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- Definition Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 13 -Subparagraph a -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 8 -Article 7 + Details
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- Definition Aggregate revenue during the period from the sale of goods in the normal course of business, after deducting returns, allowances and discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(a)) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
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