v3.26.1
Shareholder Report, Average Annual Return (Details) 191610_DoubleLine Total Return 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 4.45% 0.59% 1.59%
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%
Bloomberg U.S. Mortgage Backed Securities (MBS) Index [Member]      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name Bloomberg U.S. Mortgage Backed Securities (MBS) Index    
Average Annual Return, Percent 5.79% 0.45% 1.43%