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v3.23.1

DEBT OBLIGATIONS, NET - Uncommitted Securities Repurchase Facilities (Details) - Uncommitted Securities Repurchase Facilities | 3 Months Ended
--- | ---
Mar. 31, 2023
Minimum |
Debt Instrument [Line Items] |
Advance rates | 75.00%
Maximum |
Debt Instrument [Line Items] |
Advance rates | 95.00%

X
- Definition Represents the advance rates as a percentage of collateral. + References No definition available. + Details
Name: | ladr_DebtInstrumentAdvanceRatesPercentageOfCollateral
Namespace Prefix: | ladr_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SecuritiesFinancingTransactionAxis=ladr_UncommittedSecuritiesRepurchaseFacilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |