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Summary of Significant Accounting Policies (Details 8) (USD $) In Thousands, unless otherwise specified | 9 Months Ended |  |  |  |  |  |  |  |  |  |  |  |  | 9 Months Ended
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Sep. 30, 2014 | Sep. 30, 2014 Carrying Amount | Dec. 31, 2013 Carrying Amount | Sep. 30, 2014 Carrying Amount Senior Secured Credit Facility | Dec. 31, 2013 Carrying Amount Senior Secured Credit Facility | Sep. 30, 2014 Carrying Amount Senior Unsecured Notes [Member] | Dec. 31, 2013 Carrying Amount Senior Unsecured Notes [Member] | Sep. 30, 2014 Carrying Amount Other Long Term Obligation | Sep. 30, 2014 Estimate of Fair Value Measurement [Member] | Dec. 31, 2013 Estimate of Fair Value Measurement [Member] | Sep. 30, 2014 Estimate of Fair Value Measurement [Member] Senior Secured Credit Facility | Dec. 31, 2013 Estimate of Fair Value Measurement [Member] Senior Secured Credit Facility | Sep. 30, 2014 Estimate of Fair Value Measurement [Member] Senior Unsecured Notes [Member] | Dec. 31, 2013 Estimate of Fair Value Measurement [Member] Senior Unsecured Notes [Member] | Sep. 30, 2014 Estimate of Fair Value Measurement [Member] Other Long Term Obligation
Estimated fair values |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Discount rate (as a percent) | 5.00% |  |  |  |  |  |  |  |  |  |  |  |  |  | 5.00%
Financial assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash and cash equivalents |  | $ 230,707 | $ 292,995 |  |  |  |  |  | $ 230,707 | $ 292,995 |  |  |  |  |
Financial liabilities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  | $ 773,277 | $ 748,777 | $ 300,000 | $ 300,000 | $ 153,956 |  |  | $ 769,190 | $ 748,150 | $ 279,000 | $ 297,000 | $ 153,956

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- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash -URI http://asc.fasb.org/extlink&oid=6506951 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016 + Details
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- Definition Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13433-108611 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=35750535&loc=d3e13476-108611 + Details
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- Definition Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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