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Operating Segments and Geographic Area Information - Goodwill and Identifiable Assets by Reportable Segments (Detail) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
--- | --- | --- | ---
Segment Reporting Information [Line Items] |  |  |
Identifiable assets: | $ 3,584,797 | $ 3,437,291 | $ 3,203,824
Goodwill | 284,203 | 276,966 | 273,145
Performance Chemicals |  |  |
Segment Reporting Information [Line Items] |  |  |
Identifiable assets: | 1,132,870 | 1,113,038 | 1,014,176
Goodwill | 46,635 | 46,551 | 46,130
Catalyst Solutions |  |  |
Segment Reporting Information [Line Items] |  |  |
Identifiable assets: | 1,692,088 | 1,569,851 | 1,499,952
Goodwill | 237,568 | 230,415 | 227,015
Corporate & other |  |  |
Segment Reporting Information [Line Items] |  |  |
Identifiable assets: | $ 759,839 | $ 754,402 | $ 689,696

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- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.18) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -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 03 -Paragraph 12 -Article 7 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 18 -Article 5 + Details
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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 + Details
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