Shareholder Report, Line Graph (Details) 191629_DoubleLine Long Duration Total Return Bond Fund_Class N_TSR Annual {Class N} - USD ($) |
12 Months Ended | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Mar. 31, 2025 |
Mar. 31, 2024 |
Mar. 31, 2023 |
Mar. 31, 2022 |
Mar. 31, 2021 |
Mar. 31, 2020 |
Mar. 31, 2019 |
Mar. 31, 2018 |
Mar. 31, 2017 |
Mar. 31, 2016 |
Mar. 31, 2026 |
|
| Class N | |||||||||||
| Account Value [Line Items] | |||||||||||
| Accumulated Value | $ 8,842 | $ 8,674 | $ 9,095 | $ 10,935 | $ 11,329 | $ 12,942 | $ 10,391 | $ 9,933 | $ 9,692 | $ 10,000 | $ 8,984 |
| Bloomberg U.S. Aggregate Bond Index [Member] | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Aggregate Bond Index | ||||||||||
| Accumulated Value | 11,342 | 10,814 | 10,633 | 11,168 | 11,651 | 11,569 | 10,620 | 10,165 | 10,044 | 10,000 | $ 11,835 |
| Bloomberg U.S. Long Government/Credit Index [Member] | |||||||||||
| Account Value [Line Items] | |||||||||||
| Line Graph and Table Measure Name | Bloomberg U.S. Long Government/Credit Index | ||||||||||
| Accumulated Value | $ 11,011 | $ 10,825 | $ 10,951 | $ 12,646 | $ 13,051 | $ 13,325 | $ 11,168 | $ 10,612 | $ 10,098 | $ 10,000 | $ 11,250 |