v3.26.1
Shareholder Report, Average Annual Return (Details) 191611_DoubleLine Core Fixed Income Fund_Class I_TSR Annual {Class I}
12 Months Ended 60 Months Ended 120 Months Ended
Mar. 31, 2026
Mar. 31, 2026
Mar. 31, 2026
Without Sales Load [Member] | Class I      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name Class I (without sales charge)    
Average Annual Return, Percent 4.23% 0.82% 2.13%
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%