XML 67 R52.htm IDEA: XBRL DOCUMENT v3.19.2
Summary of Significant Accounting Policies - Narrative (Details) - Accounting Standards Update 2016-02
$ in Millions
Jan. 01, 2019
USD ($)
Error Corrections and Prior Period Adjustments Restatement [Line Items]  
Operating lease, right-of-use asset $ 67.1
Operating lease, liability 74.1
Operating lease, right-of-use asset, impaired $ 5.1