Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Leases (Details)

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Summary of Significant Accounting Policies - Leases (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Jan. 01, 2019
Recently Adopted Accounting Pronouncements    
Right of use assets $ 87,134  
Lease liabilities $ 90,104  
Accounting Standards Update 2016-02    
Recently Adopted Accounting Pronouncements    
Cumulative adjustment to retained earnings on adoption of new accounting principle   $ 0
Restatement Adjustment | Accounting Standards Update 2016-02    
Recently Adopted Accounting Pronouncements    
Right of use assets   99,100
Lease liabilities   $ 101,600