All of the Company’s leases are operating leases, the majority of which are for office space. Operating lease right-of-use (“ROU”) assets and non-current operating lease liabilities are included as individual line items on the Consolidated Balance Sheets, while short-term operating lease liabilities are recorded within accrued expenses and other current liabilities. Leases with an initial term of twelve months or less are not recorded on the Consolidated Balance Sheets and are not material.

	For the Three Months Ended June 30,
	2020			2019
Operating lease cost	$	3,944		$	3,727
Short-term lease cost		81			85
Variable lease cost		1,660			1,335
Sublease income		(63	)		—
Total lease cost	$	5,622		$	5,147


	For the Six Months Ended June 30,
	2020			2019
Operating lease cost	$	7,935		$	7,296
Short-term lease cost		163			340
Variable lease cost		3,016			2,569
Sublease income		(124	)		—
Total lease cost	$	10,990		$	10,205

Additional lease information is summarized in the following table (in thousands, except lease term and discount rate):

	Six Months Ended			Six Months Ended
	June 30, 2020			June 30, 2019
Cash paid for amounts included in the measurement of operating lease liabilities	$	6,204		$	6,216
Operating right-of-use assets obtained in exchange for lease obligations	$	3,898		$	16,626
Weighted-average remaining lease term - operating leases (years)		6.1			6.7
Weighted-average discount rate - operating leases		5.0	%		5.1	%

Future minimum lease payments under non-cancellable leases as of June 30, 2020 are as follows (in thousands):

2020 (remainder)	$	7,654
2021		14,202
2022		14,106
2023		13,587
2024		13,215
Thereafter		24,698
Total lease payments		87,462
Less imputed interest		(12,243	)
Present value of lease liabilities	$	75,219

Operating lease right-of-use assets	$	63,837

Short-term operating lease liabilities (1)	$	11,729
Non-current operating lease liabilities		63,490
Total operating lease liabilities	$	75,219

The Company’s leases do not contain residual value guarantees, material restrictions or covenants, and all sublease transactions are not material. The Company incurred $1.4 million of ROU asset impairments during the three months ended March 31, 2020 related to facility leases from the SiriusDecisions, Inc. acquisition. These impairments are recorded in acquisition and integration costs in the Consolidated Statements of Operations.

During the three months ended June 30, 2020, the Company did not enter into any new leases. As of June 30, 2020, only one of the operating leases entered into during the prior quarter had not yet commenced. This operating lease, which consists of $13.9 million of undiscounted lease payments, has a lease term of ten years and is expected to commence later in 2020.

Additionally, the Company could receive a variable incentive payment from one of its landlords to terminate the related office space lease early. The range of possible incentive payments is zero to $3.5 million, would be received in late 2020 or the first half of 2021, and is dependent on the Company’s ability to exit the existing facility by the proposed early termination dates.