Fair Value Measurements Assets and Liabilities Measured on a Non-Recurring Basis (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long Lived Real Estate Assets Fair Value Disclosure	$ 0	$ 1,529	$ 0	$ 1,529
Total losses	0	804	0	804
Long Lived Assets Initial Basis	$ 0	$ 2,333	$ 0	$ 2,333