Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation New Accounting Pronouncements Adopted (Details)

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Basis of Presentation New Accounting Pronouncements Adopted (Details) - USD ($)
$ in Thousands
Dec. 31, 2019
Oct. 01, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Operating lease, right-of-use asset $ 76,682  
Operating lease liability $ 77,463  
Accounting Standards Update 2016-02    
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Operating lease, right-of-use asset   $ 80,000