Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - New accounting pronouncements (Details)

v3.19.3.a.u2
Summary of Significant Accounting Policies - New accounting pronouncements (Details) - USD ($)
$ in Thousands
Jan. 01, 2019
Dec. 31, 2019
Dec. 31, 2017
Cumulative effect of applying new accounting standards     $ 8,645
Operating lease right-of-use assets   $ 20,789  
Operating lease liability   $ 25,460  
ASU 2016-02 | Restatement Adjustment      
Cumulative effect of applying new accounting standards $ 0    
Operating lease right-of-use assets 22,200    
Operating lease liability 26,900    
Decrease in other liabilities and prepayments $ 4,700