During the three months ended March 31, 2024, a master lease covering 11 skilled nursing centers, that was scheduled to mature in January 2024, was renewed for seven months extending the maturity to August 2024. The centers have a total of 1,444 beds and are located in Texas. During the three months ended June 30, 2024, this master lease was amended to extend the lease term to December 31, 2028, with two five-year renewal options. The annual rent increased from $8,000,000 to $9,000,000 for 2024. Rent will increase to $9,500,000 for 2025, and $10,000,000 for 2026, escalating 3.3% annually thereafter. As a condition of the amended master lease, the operator paid $1,544,000 during the three months ended June 30, 2024, and $10,376,000 subsequent to June 30, 2024, towards its $13,531,000 working capital note. The remaining $1,611,000 balance of the working capital note is interest-free and will be repaid in installments through 2028.
Additionally, during the six months ended June 30, 2024, another operator exercised its renewal option under its master lease for five years, from March 2025 through February 2030. Annual cash rent for 2024 is $8,004,000 escalating 2.5% annually. The master lease covers 666 beds across four skilled nursing centers, three in Texas and one in Wisconsin, and a behavioral health care hospital in Nevada.
We monitor the collectability of our receivable balances, including deferred rent receivable balances, on an ongoing basis. We write-off uncollectible operator receivable balances, including straight- line rent receivable and lease incentives balances, as a reduction to rental income in the period such balances are no longer probable of being collected. Therefore, recognition of rental income is limited to the lesser of the amount of cash collected or rental income reflected on a “straight-line” basis for those customer receivable balances deemed uncollectible. During the six months ended June 30, 2024 and 2023, we wrote-off straight-line rent receivable and lease incentive balances of $321,000 and $26,000, respectively.
We continue to take into account the current financial condition of our operators, in our estimation of uncollectible accounts at June 30, 2024. We are closely monitoring the collectability of such rents and will adjust future estimations as appropriate as further information becomes known.
The following table summarizes components of our rental income for the three and six months ended June 30, 2024 and 2023 (in thousands):
| | | | | | | | | | | | | |
| | Three Months Ended | | Six Months Ended |
| | June 30, | | June 30, |
Rental Income | | | 2024 | | | 2023 | | | 2024 | | | 2023 | |
Contractual cash rental income | | $ | 28,976 | | $ | 29,014 | | $ | 59,927 | (1) | $ | 58,139 | (1) |
Variable cash rental income | | | 3,255 | | | 3,176 | | | 6,636 | | | 6,460 | |
Straight-line rent | | | (48) | (2) | | (423) | (2) | | (598) | (2) | | (888) | (2) |
Adjustment of lease incentives and rental income | | | (321) | (3) | | (26) | (4) | | (321) | (3) | | (26) | (4) |
Amortization of lease incentives | | | (205) | | | (204) | | | (438) | | | (413) | |
Total | | $ | 31,657 | | $ | 31,537 | | $ | 65,206 | | $ | 63,272 | |
(1) | Increased primarily due to $2,377 repayment of rent credit in connection with the sale of our interest in a consolidated joint venture (“JV), rental income from 2023 acquisitions and annual rent escalations and contractual rent increases, partially offset by property sales and transitioned portfolios. |
(2) | Straight-line rent adjustment decreased due to lease extensions and more leases accounted for on a straight-line basis. |
(3) | Represents a straight-line rent receivable write-off related to a lease converting to fair market rent reset. |
(4) | Represents a lease incentive balance write-off related to a lease termination. |