Related Parties (Tables)

6 Months Ended

Jun. 30, 2021

Related Party Transactions [Abstract]

Schedule of Related Party Transactions

Revenue for services provided to related managed funds are as follows:

	Three months ended June 30,		Six months ended June 30,
$ in millions	2021	2020	2021	2020
Affiliated operating revenues:
Investment management fees	1,128.3	932.1	2,218.3	1,988.0
Service and distribution fees	379.6	316.7	745.9	665.9
Performance fees	4.2	2.4	5.8	3.4
Other	60.2	43.6	122.1	103.0
Total affiliated operating revenues	1,572.3	1,294.8	3,092.1	2,760.3