Commitments and Contingencies Option Properties (Details)	3 Months Ended
	Mar. 31, 2014
Commitments and Contingencies Disclosure [Abstract]
Period after appraisal to option the property	5 months
Period after exercise of option to close the purchase	90 days
Number of months after recently resolved litigation	12 months
Maximum option expiration period one	5 months
Period after completion of independent valuation	6 months
Maximum option expiration period two	7 years