| Submission | Nov. 08, 2024 |
| Submission [Line Items] | |
| Central Index Key | 0001562528 |
| Registrant Name | Franklin BSP Realty Trust, Inc. |
| Form Type | S-3 |
| Submission Type | S-3ASR |
| Fee Exhibit Type | EX-FILING FEES |
| Offerings | Nov. 08, 2024 |
| Offering: 1 | |
| Offering: | |
| Fee Previously Paid | false |
| Rule 457(r) | true |
| Security Type | Equity |
| Security Class Title | Common Stock, $0.01 par value per share |
| Fee Rate | 0.01531% |
| Offering Note | In accordance with Rules 456(b) and 457(r) under the Securities Act of 1933, as amended (the "Securities Act"), Franklin BSP Realty Trust, Inc. (the "Company") is deferring payment of all of the registration fee. Registration fees will be paid subsequently on a "pay as you go" basis. The Company will calculate the registration fee applicable to an offer of securities pursuant to this Registration Statement based on the fee payment rate in effect on the date of such fee payment. An indeterminate aggregate initial offering price and number or amount of the securities of each identified class is being registered as may from time to time be issued at indeterminate prices pursuant to this Registration Statement. Separate consideration may or may not be received for securities that are issuable upon exercise, conversion or exchange of other securities. Pursuant to Rule 416 under the Securities Act of 1933, as amended, this Registration Statement shall also cover any additional shares of the Company's securities that become issuable by reason of any stock splits, stock dividend or similar transaction. |
| Offering: 2 | |
| Offering: | |
| Fee Previously Paid | false |
| Rule 457(r) | true |
| Security Type | Equity |
| Security Class Title | Preferred Stock, par value $0.01 per share |
| Fee Rate | 0.01531% |
| Offering Note | See offering note 1. |
| Offering: 3 | |
| Offering: | |
| Fee Previously Paid | false |
| Rule 457(r) | true |
| Security Type | Other |
| Security Class Title | Depositary Shares, representing Preferred Stock |
| Fee Rate | 0.01531% |
| Offering Note | See offering note 1. |
| Offering: 4 | |
| Offering: | |
| Fee Previously Paid | false |
| Rule 457(r) | true |
| Security Type | Other |
| Security Class Title | Warrants |
| Fee Rate | 0.01531% |
| Offering Note | See offering note1. |
| Offering: 5 | |
| Offering: | |
| Fee Previously Paid | false |
| Rule 457(r) | true |
| Security Type | Other |
| Security Class Title | Subscription Rights |
| Fee Rate | 0.01531% |
| Offering Note | See offering note1. |
| Offering: 6 | |
| Offering: | |
| Fee Previously Paid | false |
| Rule 457(r) | true |
| Security Type | Other |
| Security Class Title | Units |
| Fee Rate | 0.01531% |
| Offering Note | See offering note 1. |
| Fees Summary | Nov. 08, 2024 USD ($) |
| Fees Summary [Line Items] | |
| Total Offering | $ 0 |
| Previously Paid Amount | 0 |
| Total Fee Amount | 0 |
| Total Offset Amount | 0 |
| Net Fee | $ 0 |
