Basis of Presentation and Accounting Policies - Adoption of New Accounting Standards (Details) $ in Thousands	Jan. 01, 2019 USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Impact of adoption of accounting principle	$ 25,359
Accounting Standards Update 2016-02 | Retained Earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Impact of adoption of accounting principle	15,523
Accounting Standards Update 2016-02 | Sale-Leaseback | Retained Earnings
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Impact of adoption of accounting principle	$ 25,400