XML 14 R56.htm IDEA: XBRL DOCUMENT v3.20.1
Subsequent Events - Additional Information (Detail) - Subsequent Event
Apr. 23, 2020
$ / shares
Subsequent Event [Line Items]  
Quarterly cash distribution declared date Apr. 23, 2020
Distribution made to limited partner, increase in percentage than prior year quarter declared 1.20%
Distribution Date May 14, 2020
Record Date May 04, 2020
Class A Shares  
Subsequent Event [Line Items]  
Quarterly cash distribution declared per class A share $ 0.4310