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Commitments and Contingencies (Narrative) (Details) (USD $)
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3 Months Ended | ||
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Mar. 31, 2014
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Mar. 31, 2013
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Feb. 28, 2014
Favorable Regulatory Action [Member]
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| Business Acquisition [Line Items] | |||
| Capital lease term | 14 years | ||
| Capital lease obligations | $ 98,600,000 | ||
| Capital lease, amended term | 7 years | ||
| Net capital lease obligation adjustment | 9,385,000 | 0 | |
| Winning auction bid | $ 41,400,000 | ||
| X | ||||||||||
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- Definition
Capital Lease, Amended Term No definition available.
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| X | ||||||||||
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- Definition
Capital Lease, Term No definition available.
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The increase during the period in capital lease obligations due to entering into new capital leases. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The amount or range of possible amounts of gain that could be realized upon the resolution of a contingency. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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