XML 61 R50.htm IDEA: XBRL DOCUMENT v3.19.1
BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Redeemable Preferred Stock (Details)
3 Months Ended
Mar. 31, 2019
BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES  
Preferred stock, percentage of stated value 100.00%
Preferred stock redemption, trading days prior to redemption 20 days