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Leases (Narrative) (Details) - Sheboygan Falls Energy Facility [Member] - WPL [Member] $ in Millions | 12 Months Ended
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Dec. 31, 2005 USD ($) lease_renewal_period_option
Leases [Line Items] |
Capital lease, agreement term | 20 years
Capital leases, renewal options (in number of renewal periods) | lease_renewal_period_option | 2
Affiliated lease agreement monthly payments | $ | $ 1.3
Basis for lease payments, debt to capital ratio | 50.00%
Basis for lease payments, return on equity ratio | 10.90%
Approved agreement terms, review period from date of the order | 5 years
Capital lease asset amortization term | 20 years

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- Definition Capital Leases, Agreement Term + References No definition available. + Details
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- Definition Capital Leases, Approved Agreement Terms, Review Period From Date of the Order + References No definition available. + Details
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- Details
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- Details
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