v3.26.1
Shareholder Report, Average Annual Return (Details) 191611_DoubleLine Core Fixed Income Fund_Class R6_TSR Annual {Class R6}
12 Months Ended 60 Months Ended 80 Months Ended
Mar. 31, 2026
Mar. 31, 2026
Mar. 31, 2026
Without Sales Load [Member] | Class R6      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name Class R6 (without sales charge)    
Average Annual Return, Percent 4.18% 0.84% 1.40%
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% 1.14%