Lease	6 Months Ended
Jun. 30, 2013
Leases [Abstract]
Lease	Note C Lease Registrant does not operate the Property. Registrant leases the Property to Fisk Building Associates L.L.C. (the “Lessee”) under a long-term net operating lease dated May 1, 1954 (the “Lease”). In 1985, the Participants in Registrant consented to Registrant’s Agents granting Lessee four options to extend the Lease, in each case for an additional twenty-five year renewal period, the last expiring in 2103, all on the same terms as the original lease. The Agents intend to grant such options on behalf of Registrant, subject to Lessee’s compliance with such consents. Such options have been granted by the Agents and exercised by Lessee as to (a) the first renewal period from October 1, 2003 through September 30, 2028, and (b) the second renewal period from October 1, 2028 through September 30, 2053. The Participants in Registrant have consented to the granting of options to the Lessee to extend the lease for two additional 25-year renewal terms expiring in 2103. Lessee is a New York limited liability company whose members consist of, among others, Anthony E. Malkin and entities for the benefit of members of Peter L. Malkin’s and Anthony E. Malkin’s families, respectively. Under the Lease, effective May 1, 1975, between Registrant and Lessee, basic annual rent (“Basic Rent”) was equal to mortgage principal and interest payments plus $28,000 for partial payment to Malkin Holdings for supervisory services. The lease modification dated November 17, 2000, and as further modified, between Registrant and Lessee provides that Basic Rent will be equal to the sum of $28,000 plus the installment payments for interest and amortization (not including any balloon payment due at maturity) currently payable on all mortgages. Basic Rent is payable in monthly installments on the first day of each calendar month in an amount equal to $2,333.33 plus the projected debt service due on the mortgages on the first day of the ensuing calendar month (with a reconciliation to be made as soon as practicable thereafter). Basic Rent shall be adjusted on a dollar-for-dollar basis by changes in the annual debt service on the mortgages. See Note D. Lessee is required to make a monthly payment to Registrant, as an advance against primary overage rent (“Primary Overage Rent”), of an amount equal to its operating profit for its previous lease year in the maximum amount of $752,000 per annum. Lessee currently advances $752,000 each year, which is recorded in revenues in monthly installments of $62,667 and permits Registrant to make regular monthly distributions at 20% per annum on the Participants’ remaining cash investment (which remaining cash investment at June 30, 2013, was equal to the Participants’ original cash investment of $3,600,000) and to pay $1,667 monthly to Supervisor as an advance of the additional payment (the “Additional Payment”). Lessee is also required to make an annual payment to Registrant of secondary overage rent (“Secondary Overage Rent”) subsequent to September 30^th of the amount representing 50% of the excess of the net operating profit (as defined) of the Lessee for the lease year ending September 30 over the Primary Overage Rent of $752,000, less the amount representing interest earned and retained by Registrant on funds borrowed for the building improvement program described below. Registrant recognizes Secondary Overage Rent when earned from the Lessee, at the close of the lease year ending September 30 and records such amount in revenue in the three months ended September 30. Rent income, earned from a related party, was $2,300,083 and $2,108,472 for the six months ended June 30, 2013 and 2012, respectively. For the lease year ended September 30, 2012, Lessee had net operating profit of $7,869,126 after deduction of Basic Rent. Lessee paid Primary Overage Rent of $752,000 for that lease year prior to September 30, 2012 and Secondary Overage Rent of $3,558,414 subsequent to September 30, 2012. The Secondary Overage Rent of $3,558,414 represents 50% of the excess of the Lessee’s net operating profit of $7,869,126 over $752,000, less $148 representing interest earned and retained by Registrant on funds borrowed for the improvement program. As a result, the Secondary Overage Rent paid by the Lessee subsequent to September 30, 2012 of $3,558,414 plus $148 of interest income was available for distribution by Registrant to the Participants. After deducting $1,500,000 for (i) fees relating to a proposed consolidation of Registrant, other public and private entities supervised by the Supervisor and the Supervisor and certain affiliated management companies into Empire State Realty Trust, Inc., a newly formed real estate investment trust (collectively the “Consolidation”) and the initial public offering of Class A common stock of Empire State Realty Trust, Inc. (the “IPO”), (ii) the increase in the supervisory fee to the Supervisor, (iii) accounting fees, (iv) general contingencies, (v) the Additional Payment to the Supervisor of $205,556 (Note E), and (vi) the annual New York State filing fee of $3,000, the balance of $1,850,006 was distributed by Registrant to the Participants on December 12, 2012. As a result of its revenue recognition policy, rental income for the year ending December 31 includes Basic Rent and the advances of Primary Overage Rent received from October 1 to December 31, but does not include any portion of Secondary Overage Rent based on the Lessee’s operations during that period. The Supervisor of the Registrant has solicited consents of Participants in the Registrant and other public limited liability companies supervised by the Supervisor to the proposed Consolidation pursuant to a prospectus/consent solicitation statement included in a registration statement on Form S-4 declared effective by the SEC. In the proposed transaction, (x) the property interests of the Registrant, such other public limited liability companies and certain private entities supervised by the Supervisor, and (y) the Supervisor and certain affiliated management companies would be contributed to the operating partnership of Empire State Realty Trust, Inc., a newly organized real estate investment trust. Consents are required from Participants in the Registrant and such other public limited liability companies for them to contribute their interests in the Consolidation. The Supervisor of the Registrant has received the required consents of Participants in the Registrant to the Consolidation. The Supervisor has also received the required consents of participants in 60 East 42^nd St. Associates L.L.C. to the Consolidation. The Supervisor has received the required supermajority consent from participants in Empire State Building Associates L.L.C. Following the receipt of the required supermajority approval, each participant in Empire State Building Associates L.L.C who had voted against, or abstained, or not submitted a consent form regarding the Consolidation, was sent a 10-day buyout notice stating that its interest was subject to buyout for $100 if it did not consent to the Consolidation. The period for consenting to the Consolidation for those sent the buyout notice, as extended, has not yet terminated. Consents have been obtained from participants in the private entities and the Supervisor and certain affiliated companies and affiliates of the Supervisor for them to make such contributions. The consideration to be paid to the contributing companies and entities in the Consolidation will be allocated in accordance with exchange values determined based on appraisals by an independent third party.

Note C Lease

Registrant does not operate the Property. Registrant leases the Property to Fisk Building Associates L.L.C. (the “Lessee”) under a long-term net operating lease dated May 1, 1954 (the “Lease”). In 1985, the Participants in Registrant consented to Registrant’s Agents granting Lessee four options to extend the Lease, in each case for an additional twenty-five year renewal period, the last expiring in 2103, all on the same terms as the original lease. The Agents intend to grant such options on behalf of Registrant, subject to Lessee’s compliance with such consents. Such options have been granted by the Agents and exercised by Lessee as to (a) the first renewal period from October 1, 2003 through September 30, 2028, and (b) the second renewal period from October 1, 2028 through September 30, 2053. The Participants in Registrant have consented to the granting of options to the Lessee to extend the lease for two additional 25-year renewal terms expiring in 2103. Lessee is a New York limited liability company whose members consist of, among others, Anthony E. Malkin and entities for the benefit of members of Peter L. Malkin’s and Anthony E. Malkin’s families, respectively.

Under the Lease, effective May 1, 1975, between Registrant and Lessee, basic annual rent (“Basic Rent”) was equal to mortgage principal and interest payments plus $28,000 for partial payment to Malkin Holdings for supervisory services. The lease modification dated November 17, 2000, and as further modified, between Registrant and Lessee provides that Basic Rent will be equal to the sum of $28,000 plus the installment payments for interest and amortization (not including any balloon payment due at maturity) currently payable on all mortgages. Basic Rent is payable in monthly installments on the first day of each calendar month in an amount equal to $2,333.33 plus the projected debt service due on the mortgages on the first day of the ensuing calendar month (with a reconciliation to be made as soon as practicable thereafter). Basic Rent shall be adjusted on a dollar-for-dollar basis by changes in the annual debt service on the mortgages. See Note D.

Lessee is required to make a monthly payment to Registrant, as an advance against primary overage rent (“Primary Overage Rent”), of an amount equal to its operating profit for its previous lease year in the maximum amount of $752,000 per annum. Lessee currently advances $752,000 each year, which is recorded in revenues in monthly installments of $62,667 and permits Registrant to make regular monthly distributions at 20% per annum on the Participants’ remaining cash investment (which remaining cash investment at June 30, 2013, was equal to the Participants’ original cash investment of $3,600,000) and to pay $1,667 monthly to Supervisor as an advance of the additional payment (the “Additional Payment”).

Lessee is also required to make an annual payment to Registrant of secondary overage rent (“Secondary Overage Rent”) subsequent to September 30^th of the amount representing 50% of the excess of the net operating profit (as defined) of the Lessee for the lease year ending September 30 over the Primary Overage Rent of $752,000, less the amount representing interest earned and retained by Registrant on funds borrowed for the building improvement program described below. Registrant recognizes Secondary Overage Rent when earned from the Lessee, at the close of the lease year ending September 30 and records such amount in revenue in the three months ended September 30.

Rent income, earned from a related party, was $2,300,083 and $2,108,472 for the six months ended June 30, 2013 and 2012, respectively.

For the lease year ended September 30, 2012, Lessee had net operating profit of $7,869,126 after deduction of Basic Rent. Lessee paid Primary Overage Rent of $752,000 for that lease year prior to September 30, 2012 and Secondary Overage Rent of $3,558,414 subsequent to September 30, 2012. The Secondary Overage Rent of $3,558,414 represents 50% of the excess of the Lessee’s net operating profit of $7,869,126 over $752,000, less $148 representing interest earned and retained by Registrant on funds borrowed for the improvement program. As a result, the Secondary Overage Rent paid by the Lessee subsequent to September 30, 2012 of $3,558,414 plus $148 of interest income was available for distribution by Registrant to the Participants. After deducting $1,500,000 for (i) fees relating to a proposed consolidation of Registrant, other public and private entities supervised by the Supervisor and the Supervisor and certain affiliated management companies into Empire State Realty Trust, Inc., a newly formed real estate investment trust (collectively the “Consolidation”) and the initial public offering of Class A common stock of Empire State Realty Trust, Inc. (the “IPO”), (ii) the increase in the supervisory fee to the Supervisor, (iii) accounting fees, (iv) general contingencies, (v) the Additional Payment to the Supervisor of $205,556 (Note E), and (vi) the annual New York State filing fee of $3,000, the balance of $1,850,006 was distributed by Registrant to the Participants on December 12, 2012.

As a result of its revenue recognition policy, rental income for the year ending December 31 includes Basic Rent and the advances of Primary Overage Rent received from October 1 to December 31, but does not include any portion of Secondary Overage Rent based on the Lessee’s operations during that period.

The Supervisor of the Registrant has solicited consents of Participants in the Registrant and other public limited liability companies supervised by the Supervisor to the proposed Consolidation pursuant to a prospectus/consent solicitation statement included in a registration statement on Form S-4 declared effective by the SEC. In the proposed transaction, (x) the property interests of the Registrant, such other public limited liability companies and certain private entities supervised by the Supervisor, and (y) the Supervisor and certain affiliated management companies would be contributed to the operating partnership of Empire State Realty Trust, Inc., a newly organized real estate investment trust.

Consents are required from Participants in the Registrant and such other public limited liability companies for them to contribute their interests in the Consolidation. The Supervisor of the Registrant has received the required consents of Participants in the Registrant to the Consolidation. The Supervisor has also received the required consents of participants in 60 East 42^nd St. Associates L.L.C. to the Consolidation. The Supervisor has received the required supermajority consent from participants in Empire State Building Associates L.L.C. Following the receipt of the required supermajority approval, each participant in Empire State Building Associates L.L.C who had voted against, or abstained, or not submitted a consent form regarding the Consolidation, was sent a 10-day buyout notice stating that its interest was subject to buyout for $100 if it did not consent to the Consolidation. The period for consenting to the Consolidation for those sent the buyout notice, as extended, has not yet terminated.

Consents have been obtained from participants in the private entities and the Supervisor and certain affiliated companies and affiliates of the Supervisor for them to make such contributions. The consideration to be paid to the contributing companies and entities in the Consolidation will be allocated in accordance with exchange values determined based on appraisals by an independent third party.