Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Recent Accounting Pronouncements (Details)

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Summary of Significant Accounting Policies - Recent Accounting Pronouncements (Details) - USD ($)
Mar. 31, 2020
Dec. 31, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]    
Right-of-use asset $ 50,698,000 $ 34,691,000
Finance Lease, Liability 53,441,000  
Intangible assets 64,300,000 64,300,000
Right-of-use asset $ 344,148,000 $ 337,842,000