On January 7, 2020, Douglas Holdings leased a building to Wade Lumber for a twelve-year term at an annual rental of $120,000. At inception of the lease, Douglas received $480,000 covering the first two years' rent of $240,000 and a security deposit of $240,000. This deposit willnotbe returned to Wade upon expiration of the lease but will be applied to payment of rent for the last two years of the lease. What portion of the $480,000 should be shown as a current and long-term liability in Douglas' December 31, 2020 balance sheet?