Shareholder Report, Average Annual Return (Details) 191615_DoubleLine Low Duration Bond Fund_Class N_TSR Annual {Class N}	12 Months Ended	60 Months Ended	120 Months Ended
	Mar. 31, 2026	Mar. 31, 2026	Mar. 31, 2026
Without Sales Load [Member] \| Class N
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Class N (without sales charge)
Average Annual Return, Percent	4.31%	2.87%	2.62%
Bloomberg U.S. Aggregate Bond Index [Member]
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Bloomberg U.S. Aggregate Bond Index
Average Annual Return, Percent	4.35%	0.31%	1.70%
ICE BofA 1-3 Year U.S. Treasury Index [Member]
Average Annual Return [Line Items]
Line Graph and Table Measure Name	ICE BofA 1-3 Year U.S. Treasury Index
Average Annual Return, Percent	3.75%	1.86%	1.78%
Bloomberg U.S. Aggregate 1-3 Years Index [Member]
Average Annual Return [Line Items]
Line Graph and Table Measure Name	Bloomberg U.S. Aggregate 1-3 Years Index
Average Annual Return, Percent	4.03%	2.06%	2.01%