From time to time, the Company enters into certain types of contracts that require it to indemnify parties against third-party claims. These contracts primarily relate to agreements under which the Company assumes indemnity obligations for intellectual property infringement, as well as other obligations from time to time depending on arrangements negotiated with customers and other third parties. The conditions of these obligations vary. Thus, the overall maximum amount of the Company’s indemnification obligations cannot be reasonably estimated. Historically, the Company has not been obligated to make significant payments for these obligations and does not currently expect to incur any material obligations in the future. Accordingly, the Company has not recorded an indemnification liability on its balance sheets as of December 31, 2018 or December 31, 2017.

The Company leases office space under operating lease agreements. Under the lease agreements, in addition to base rent, the Company is generally responsible for certain taxes, utilities and maintenance costs, and other fees. Several of these leases include options for renewal. The Company does not have any material capital leases. The Company leases approximately 214,000 square feet of office space at a location in Northern Virginia that began serving as its corporate headquarters in October 2010. In January 2018, the Company amended the lease to extend the lease term through December 2030. The amended lease also provides for certain tenant allowances and incentives. At December 31, 2018 and 2017, deferred rent of $26.9 million and $8.5 million, respectively, was included in other long-term liabilities.

As a result of the Tax Act, the Company estimated and recorded a one-time $40.3 million tax expense related to the Transition Tax during the year ended December 31, 2017. The Company subsequently recorded a measurement-period adjustment to reduce the Transition Tax by $3.1 million during the year ended December 31, 2018. At December 31, 2018, $28.9 million of the Transition Tax was unpaid and included in “Other long-term liabilities” in the Company’s Consolidated Balance Sheets. See Note 8, Income Taxes, to the consolidated financial statements for further information.

The following table shows future minimum rent payments under noncancellable operating leases and agreements with initial terms of greater than one year, and anticipated payments related to the one-time Transition Tax resulting from the Tax Act, based on the expected due dates of the various installments as of December 31, 2018 (in thousands):

	Operating Leases		Transition Tax
Year	Amount		Amount
2019	$	27,768	$	0
2020		25,583		897
2021		18,573		2,951
2022		15,694		2,951
2023		15,607		5,534
Thereafter		92,347		16,602
	$	195,572	$	28,935

Total rental expenses under operating lease agreements for the years ended December 31, 2018, 2017, and 2016 were $18.9 million, $19.8 million, and $20.3 million, respectively.

Following an internal review, the Company believes that its Brazilian subsidiary failed or likely failed to comply with local procurement regulations in conducting business with certain Brazilian government entities. While the Company believes that it is probable that the resolution of this matter will result in a loss, the amount or range of loss is not reasonably estimable at this time. Given the stage of the matter, no assurance can be given that the outcome will not result in a material impact on the Company’s earnings and financial results for the period in which any such liability is accrued. However, the Company believes that the outcome of this matter will not have a material effect on the Company’s financial position.

The Company is also involved in various legal proceedings arising in the normal course of business. Although the outcomes of these legal proceedings are inherently difficult to predict, management does not expect the resolution of these legal proceedings to have a material adverse effect on the Company’s financial position, results of operations, or cash flows.

The Company has contingent liabilities that, in management’s judgment, are not probable of assertion. If such unasserted contingent liabilities were to be asserted, or become probable of assertion, the Company may be required to record significant expenses and liabilities in the period in which these liabilities are asserted or become probable of assertion.