Average Annual Total Returns - Class ACR6IS [Member]		12 Months Ended	60 Months Ended	120 Months Ended
Average Annual Total Returns - Class ACR6IS [Member]	May 31, 2025	Dec. 31, 2024	Dec. 31, 2024	Dec. 31, 2024
Bloomberg U.S. Aggregate Bond Index (reflects no deduction for fees, expenses or taxes)[Member]
Prospectus [Line Items]
Average Annual Return, Percent		1.25%	(0.33%)	1.35%
Morningstar® LSTA US Leveraged Loan Index (reflects no deduction for fees, expenses or taxes)[Member]
Prospectus [Line Items]
Average Annual Return, Percent		8.95%	5.86%	5.15%
Class A \| After Taxes on Distributions
Prospectus [Line Items]
Average Annual Return, Percent		0.91%	1.29%	0.78%
Class A \| After Taxes on Distributions and Sales
Prospectus [Line Items]
Average Annual Return, Percent		2.57%	1.72%	1.22%
Class A \| Return Before Taxes[Member]
Prospectus [Line Items]
Average Annual Return, Percent		4.45%	3.58%	2.85%
Performance Inception Date	Jun. 29, 2007
Class C \| Return Before Taxes[Member]
Prospectus [Line Items]
Average Annual Return, Percent		5.61%	3.39%	2.38%
Performance Inception Date	Jun. 29, 2007
INST Class \| Return Before Taxes[Member]
Prospectus [Line Items]
Average Annual Return, Percent		7.81%	4.45%	3.40%
Performance Inception Date	Jun. 29, 2007
Class S \| Return Before Taxes[Member]
Prospectus [Line Items]
Average Annual Return, Percent		7.72%	4.35%	3.31%
Performance Inception Date	Jun. 29, 2007