XML 114 R105.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Redeemable Series A Preferred Units - Additional Information (Details) - $ / shares
Dec. 31, 2019
Oct. 31, 2017
Aug. 31, 2017
Mar. 31, 2017
Dec. 31, 2016
Sep. 30, 2016
May 31, 2016
Mar. 31, 2016
Redemption Price per Unit   $ 10.00 $ 10.00 $ 10.00 $ 10.00 $ 10.00 $ 10.00 $ 10.00
Series A Preferred Units [Member]                
Redemption Price per Unit $ 10.00