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Long-Term Debt (Details) (Revolving credit facility, USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Revolving credit facility |  |  |
Line of Credit Facility [Line Items] |  |  |
Interest incurred | $ 2,090 | $ 2,936 | $ 4,146
Capitalized interest | 935 | 1,026 | 627
Interest paid (net of capitalized interest) | $ 618 | $ 1,498 | $ 3,168
Weighted average interest rate | 3.70% | 2.30% | 2.80%

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- Definition Total interest costs incurred during the period and either capitalized or charged against earnings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391 + Details
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- Definition The amount of cash paid for interest during the period net of cash paid for interest that is capitalized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4297-108586 + Details
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