XML 21 R37.htm IDEA: XBRL DOCUMENT

Long-Term Debt and Financing Obligations Long term debt (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
RGRT [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 144,800	$ 123,400
Pollution Control Bonds [Member]
Debt Instrument [Line Items]
Long-term Debt	193,100
Debt Instrument, Interest Rate, Stated Percentage	4.00%
Pollution Control Bonds [Member] \| 4.00% 2002 Series A Refunding Bonds, due 2032 [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 33,300	$ 33,300

Including current and noncurrent portions, aggregate carrying amount of long-term borrowings as of the balance sheet date. May include notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, which had initial maturities beyond one year or beyond the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any.

+ References+ Details