Leases	9 Months Ended
Sep. 30, 2021
Leases [Abstract]
Leases	(5) Leases The Company leases office space in the United States and foreign locations under operating lease agreements. Office space is the Company’s only material underlying asset class under operating lease agreements. The Company has no material finance leases. Under the Company’s office space lease agreements, fixed payments and variable payments that depend on an index or rate are typically comprised of base rent and parking fees. Additionally, under these agreements the Company is generally responsible for certain variable payments that typically include certain taxes, utilities and maintenance costs, and other fees. These variable lease payments are generally based on the Company’s occupation or usage percentages and are subject to adjustments by the lessor. As of September 30, 2021, the Company’s right-of-use (“ROU”) assets and total lease liabilities were $58.6 million and $77.6 million, respectively, for leases in the United States and $10.2 million and $11.1 million, respectively, for foreign leases. As of December 31, 2020, the Company’s ROU assets and total lease liabilities were $62.2 million and $82.9 million, respectively, for leases in the United States and $11.4 million and $12.2 million, respectively, for foreign leases. The Company’s most significant lease is for its corporate headquarters in Northern Virginia. The ROU asset and total lease liability related to the Company’s corporate headquarters lease were $56.2 million and $75.2 million, respectively, as of September 30, 2021, and $59.0 million and $79.7 million, respectively, as of December 31, 2020. During the nine months ended September 30, 2021, $2.4 million of ROU assets were obtained in exchange for new operating lease liabilities. During the nine months ended September 30, 2020, $0.7 million of ROU assets were obtained in exchange for new operating lease liabilities.

Leases

9 Months Ended

Sep. 30, 2021

(5) Leases

The Company leases office space in the United States and foreign locations under operating lease agreements. Office space is the Company’s only material underlying asset class under operating lease agreements. The Company has no material finance leases.

Under the Company’s office space lease agreements, fixed payments and variable payments that depend on an index or rate are typically comprised of base rent and parking fees. Additionally, under these agreements the Company is generally responsible for certain variable payments that typically include certain taxes, utilities and maintenance costs, and other fees. These variable lease payments are generally based on the Company’s occupation or usage percentages and are subject to adjustments by the lessor.

As of September 30, 2021, the Company’s right-of-use (“ROU”) assets and total lease liabilities were $58.6 million and $77.6 million, respectively, for leases in the United States and $10.2 million and $11.1 million, respectively, for foreign leases. As of December 31, 2020, the Company’s ROU assets and total lease liabilities were $62.2 million and $82.9 million, respectively, for leases in the United States and $11.4 million and $12.2 million, respectively, for foreign leases. The Company’s most significant lease is for its corporate headquarters in Northern Virginia. The ROU asset and total lease liability related to the Company’s corporate headquarters lease were $56.2 million and $75.2 million, respectively, as of September 30, 2021, and $59.0 million and $79.7 million, respectively, as of December 31, 2020. During the nine months ended September 30, 2021, $2.4 million of ROU assets were obtained in exchange for new operating lease liabilities. During the nine months ended September 30, 2020, $0.7 million of ROU assets were obtained in exchange for new operating lease liabilities.