2.2.0.25falsefalse10201 - Disclosure - Business Combinationstruefalsefalse1falsefalseUSDfalsefalse1/1/2011 - 3/31/2011 USD ($) USD ($) / shares $Duration_1_1_2011_To_3_31_2011http://www.sec.gov/CIK0001130385duration2011-01-01T00:00:002011-03-31T00:00:00Unit12Standardhttp://www.xbrl.org/2003/iso4217USDiso42170Unit1Standardhttp://www.xbrl.org/2003/instancesharesxbrli0Unit13Standardhttp://www.xbrl.org/2003/instancepurexbrli0Unit16Dividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0USDUSD$2true0fwlt_BusinessCombinationDisclosureAbstractfwltfalsenadurationBusiness Combination Disclosure [Abstract]falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringBusiness Combination Disclosure [Abstract]falsefalseBusiness Combinations3false0us-gaap_BusinessCombinationDisclosureTextBlockus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseterselabel1falsefalsefalse00<div> <div style="font-family: 'Times New Roman',Times,serif;"> <div style="margin-top: 12pt; font-size: 10pt;" align="left"><b>2. Business Combinations</b> </div> <div style="margin-top: 6pt; font-size: 10pt;" align="left">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In December&nbsp;2010, we acquired the assets of a proprietary sulfur recovery technology business for $1,000. The sulfur recovery technology is used to treat gas streams containing hydrogen sulfide for the purpose of reducing the sulfur content of fuel products and to recover a saleable sulfur by-product. The acquisition includes patents, know-how and skilled personnel. The purchase price allocation and pro forma information for this acquisition were not material to our consolidated financial statements. This company's financial results are included within our Global Engineering and Construction Group ("Global E&amp;C Group") business segment. </div></div> </div>2. Business Combinations &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In December&nbsp;2010, we acquired the assets of a proprietary sulfur recovery technology business forfalsefalsefalsefalsefalseOtherus-types:textBlockItemTypestringDescription of a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. This element may be used as a single block of text to encapsulate the entire disclosure (including data and tables) regarding business combinations, including leverage buyout transactions (as applicable).Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 51, 52 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 88-16 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141R -Paragraph 67-73 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141R -Paragraph F4 -Subparagraph e -Appendix F falsefalseBusiness Combinations12Business CombinationsUnKnownUnKnownUnKnownUnKnownfalsetrue