Fair Value Measurements (Recurring) (Details) $ in Thousands	Sep. 30, 2019 USD ($) derivative	Dec. 31, 2018 USD ($)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Number of interest rate derivatives | derivative	0
Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Derivative assets		$ 3,914
Derivative liability	$ 976	(5,856)
Earnout derivative liability	(5,762)
Other liabilities: Warrant	(774)
Total net assets	(5,560)	(1,942)
Fair Value, Inputs, Level 2 | Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Derivative assets		3,914
Derivative liability	976
Other liabilities: Warrant	(774)
Total net assets	202	3,914
Fair Value, Inputs, Level 3 | Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Derivative liability		(5,856)
Earnout derivative liability	(5,762)
Total net assets	$ (5,762)	$ (5,856)