Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Derivative Financial Instruments (Details)

v3.19.1
Summary of Significant Accounting Policies - Derivative Financial Instruments (Details) - Accounting Standards Update 2017-12
$ in Thousands
Jan. 01, 2018
USD ($)
Retained Earnings  
New Accounting Pronouncements or Change in Accounting Principle [Line Items]  
Cumulative impact from the adoption of ASU $ 432
Accumulated Other Comprehensive Loss  
New Accounting Pronouncements or Change in Accounting Principle [Line Items]  
Cumulative impact from the adoption of ASU $ (432)