Leases - Financial Statement Impact (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Lease liability - operating	$ 8,086
Administrative expenses
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease cost	759	$ 734
Other assets
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Right-of-use asset - operating	6,833		$ 7,616
Accounts payable and other accrued expenses
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Lease liability - operating	$ 8,086		$ 8,940