| Submission | Nov. 22, 2024 |
| Submission [Line Items] | |
| Central Index Key | 0001040971 |
| Registrant Name | SL GREEN REALTY CORP |
| Registration File Number | 333-283381 |
| Form Type | S-3 |
| Submission Type | 424B2 |
| Fee Exhibit Type | EX-FILING FEES |
| Offerings - Offering: 1 | Nov. 22, 2024 USD ($) shares |
| Offering: | |
| Fee Previously Paid | false |
| Rule 457(r) | true |
| Security Type | Equity |
| Security Class Title | Common stock, par value $0.01 per share |
| Amount Registered | shares | 5,822,784 |
| Proposed Maximum Offering Price per Unit | 79 |
| Maximum Aggregate Offering Price | $ 459,999,936 |
| Fee Rate | 0.01531% |
| Amount of Registration Fee | $ 70,425.99 |
| Offering Note | This "Calculation of Filing Fee" table shall be deemed to update the "Calculation of Filing Fee" table in the registrant's Registration Statement on Form S-3, filed with the U.S. Securities and Exchange Commission on November 21, 2024, in accordance with Rules 456(b) and Rule 457(r) under the Securities Act of 1933. The shares of Common Stock that may be offered and sold by the registrant and includes 759,493 shares of Common Stock that may be purchased by the underwriters upon the exercise of their option to purchase additional shares from the registrant. |
| Fees Summary | Nov. 22, 2024 USD ($) |
| Fees Summary [Line Items] | |
| Total Offering | $ 459,999,936 |
| Previously Paid Amount | 0 |
| Total Fee Amount | 70,425.99 |
| Total Offset Amount | 0 |
| Net Fee | $ 70,425.99 |
| Final Prospectus | false |
