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Cover page Document Information
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2019
Document Information [Line Items]    
Document Type   10-Q
Document Period End Date   Jun. 30, 2019
Document Quarterly Report true  
Document Transition Report   false
Entity Shell Company   false
Document Fiscal Year Focus   2019
Document Fiscal Period Focus   Q2
Amendment Flag   false