Related Party (Cost Allocation Agreements with Affiliates) (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Related Party Transactions [Abstract]
Allocated Lease Expense	$ 403,000	$ 785,000	$ 2,000,000	$ 3,000,000
Allocated Sub-Lease Rental Income	723,000	655,000	2,000,000	2,000,000
Commissions and Fees Paid to PAD	$ 43,000,000	$ 50,000,000	$ 128,000,000	$ 145,000,000