Related Party Transactions (Summary of Related Party Transactions) (Details) - Affiliated Entity [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Related Party Transaction [Line Items]
Tax, utility, insurance and other reimbursement	$ 878	$ 589	$ 692
Rent expense	1,014	1,014	1,026
Capital assets acquired	323	261	266
Total	$ 2,215	$ 1,864	$ 1,984