Annual report pursuant to Section 13 and 15(d)

SCHEDULE I CONDENSED FINANCIAL INFORMATION OF REGISTRANT - Basis of Presentation (Details)

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SCHEDULE I CONDENSED FINANCIAL INFORMATION OF REGISTRANT - Basis of Presentation (Details)
Dec. 31, 2018
Parent [Member] | Merger Agreement  
Business Acquisition [Line Items]  
Exchange of shares, conversion ratio 1.3