XML 30 R47.htm IDEA: XBRL DOCUMENT v2.4.0.8
Debt (Narrative) (Details) (USD $)
3 Months Ended 6 Months Ended 6 Months Ended 6 Months Ended 3 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Dec. 31, 2013
Jun. 30, 2014
Unsecured Letter of Credit [Member]
Dec. 31, 2013
Unsecured Letter of Credit [Member]
Jun. 30, 2014
Financial Services [Member]
Unsecured Letter of Credit [Member]
Jun. 30, 2014
Letter of Credit [Member]
Dec. 31, 2013
Letter of Credit [Member]
Jun. 30, 2014
Repurchase Agreement [Member]
Financial Services [Member]
Dec. 31, 2013
Repurchase Agreement [Member]
Financial Services [Member]
Jun. 30, 2014
Revolving Credit Facility [Member]
Jul. 23, 2014
Revolving Credit Facility [Member]
Subsequent Event [Member]
Jul. 23, 2014
Revolving Credit Facility Accordion Feature [Member]
Subsequent Event [Member]
Debt Instrument [Line Items]                              
Extinguishment of Debt, Amount $ 0 $ 434,400,000 $ 245,700,000 $ 434,400,000                      
Loss on debt retirements 0 23,072,000 8,584,000 23,072,000                      
Letters of Credit Outstanding, Amount 194,100,000   194,100,000   183,100,000 107,200,000 124,400,000   86,900,000 58,700,000          
Maximum Borrowing Capacity           150,000,000         99,800,000 150,000,000   500,000,000 1,000,000,000
Line of Credit Facility, Expiration date               Sep. 01, 2014     Sep. 12, 2014   Jul. 21, 2017    
Line of Credit Facility, Initiation Date                     Jan. 09, 2014   Jul. 23, 2014    
Line of Credit Facility, Amount Outstanding $ 58,506,000   $ 58,506,000   $ 105,664,000           $ 58,500,000 $ 105,700,000