Debt - Schedule of Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Long-term Debt, Gross	$ 365,000	$ 400,022
Deferred Finance Costs, Gross	(6,144)	(6,117)
Long-term Debt	358,856	393,905
Senior Notes [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	260,000	260,000
Deferred Finance Costs, Gross	(5,505)	(5,771)
Long-term Debt	254,495	254,229
Senior Unsecured Term Loan [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	100,000	0
Deferred Finance Costs, Gross	(639)	0
Long-term Debt	99,361	0
Line of Credit [Member]
Debt Instrument [Line Items]
Long-term Debt, Gross	5,000	45,000
Deferred Finance Costs, Gross	0	0
Long-term Debt	5,000	45,000
Mortgage notes payable
Debt Instrument [Line Items]
Long-term Debt, Gross	0	95,022
Deferred Finance Costs, Gross	0	(346)
Long-term Debt	$ 0	$ 94,676