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Additional Cash Flow Information (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Changes in operating assets and liabilities, net of effect of businesses acquired [Abstract] |  |  |
Accounts receivable | $ (16,870) | $ 33,004 | $ 61,918
Inventories | (31,246) | (186) | (13,829)
Prepaid expenses and other current assets | 19,160 | 2,977 | (14,273)
Accounts payable | 11,087 | (9,408) | (11,468)
Other current liabilities | 7,860 | (31,539) | (74,851)
Net change in operating assets and liabilities | $ (10,009) | $ (5,152) | $ (52,503)

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- Definition Change in recurring obligations of a business that arise from the acquisition of merchandise, materials, supplies and services used in the production and sale of goods and services. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
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- Definition The increase (decrease) during the reporting period in the aggregate value of all inventory held by the reporting entity, associated with underlying transactions that are classified as operating activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
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- Definition The increase (decrease) during the reporting period in other current operating liabilities not separately disclosed in the statement of cash flows. + References No definition available. + Details
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