Commitments and Contingencies Line of Credit (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Line of Credit Maintained	$ 1,000
Restricted Investments, Current	$ 1,401	$ 1,401
Number of Letter of Credit	1
Letters of Credit Outstanding, Amount	$ 113