The Company adopted the new lease accounting guidance as of January 1, 2019, which resulted in recognition of ROU assets and lease liabilities related to operating leases on the condensed consolidated statements of financial condition. The Company determines if an arrangement is, or contains, a lease at its inception and reevaluates the arrangement if the terms are modified. Operating lease ROU assets represent the right to use an underlying asset for the lease term and operating lease liabilities reflect the obligation to make lease payments arising from the lease. At any given time during the lease term, the operating lease liability represents the present value of the remaining lease payments and the operating lease ROU asset is measured at the amount of the lease liability, adjusted for rent prepayments, unamortized initial direct costs and the remaining balance of lease incentives received. Both the operating lease ROU asset and the operating lease liability are reduced to zero at the end of the lease.

The Company leases office space and equipment under non-cancelable lease agreements, which expire on various dates through 2033. Substantially all of these arrangements are operating leases relating to office space. Certain leases have renewal options that can be exercised at the discretion of the Company. The Company only includes renewal options in the lease term when it is reasonably certain to exercise the option. The Company does not record leases with a lease term of 12 months or less on the condensed consolidated statements of financial condition; lease expense for these leases is recognized over the lease term on a straight-line basis.

For leases commencing on January 1, 2019 or thereafter that are recognized on the condensed consolidated statements of financial condition, the Company applies its estimated Discount. The Company bases this Discount on the information available at the lease commencement date. The Company determines its Discount with consideration of the Company’s public debt issuances as well as publicly available data for instruments with similar characteristics.

For leases commencing on January 1, 2019 or thereafter that relate to office space and equipment, the Company accounts for the lease and non-lease components as a single lease component.

In addition to rent payments, operating leases for office space generally contain payments for real estate taxes, insurance costs, common area maintenance, and utilities that are not fixed. The Company accounts for these costs as variable payments and does not include them in the lease component. There are certain office leases outside of the U.S. that have annual rent increases that are also accounted for as variable payments and are excluded from the lease component.

The following table summarizes the components of operating lease expense reflected on the accompanying condensed consolidated statements of operations for the three month and nine month periods ended September 30, 2019:

	Three Months Ended		Nine Months Ended
	September 30, 2019		September 30, 2019
Operating lease cost	$	19,966	$	58,866
Variable lease cost		4,647		13,698
Less - sublease income		1,621		5,083
Total	$	22,992	$	67,481

The following table summarizes the supplemental cash flow information and certain other information related to operating leases for the nine month period ended September 30, 2019:

	Nine Months Ended
	September 30, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	62,073

Operating lease right-of-use assets obtained in exchange for operating lease liabilities	$	603,288

Weighted average remaining lease term	12 years

Weighted average discount rate		3.6	%

Maturities of the operating lease liabilities outstanding at September 30, 2019 for each of the years in the period ending December 31, 2024 and thereafter are set forth in the table below.

Year Ending December 31,
2019 (October 1 through December 31)	$	22,441
2020		86,862
2021		82,649
2022		66,608
2023		62,065
2024		60,898
Thereafter		426,209
Total lease payments		807,732
Less - Discount		155,051
Operating lease liabilities	$	652,681

In August 2018, the Company entered into a lease agreement for additional office facilities, which are currently under construction. The lease commenced in the third quarter of 2019 when the facilities were delivered to the Company. The Company recognized the related operating lease right-of-use assets and the operating lease liability on the lease commencement date.

Prior to the adoption of the new lease accounting guidance, the minimum rental commitments under non-cancelable operating leases at December 31, 2018, net of sublease income, were approximately as follows:

Year Ending December 31,
2019	$	86,839
2020		89,445
2021		83,701
2022		70,780
2023		59,973
Thereafter		488,612
Total minimum rental commitments		879,350
Less - sublease proceeds		26,941
Net rental commitments	$	852,409