Subsequent Events	9 Months Ended
Sep. 30, 2019
Subsequent Events [Abstract]
Subsequent Events	NOTE 15 – SUBSEQUENT EVENTS On October 24, 2019 the Company entered into a new commercial lease agreement for the Company’s corporate headquarters in Fairfax, Virginia. The Company’s prior corporate headquarters lease is set to expire on December 31, 2022. The new lease commences on March 1, 2022 and extends through April 30, 2039. Total base rent payable over the extended lease period is approximately $154.9 million. The Company has two options to extend the lease for an additional consecutive ten-year period under each option, or four options to extend the lease for an additional consecutive five-year period under each option with respect to the entire premises. On November 6, 2019, the Company’s board of directors approved a $0.14 per share cash dividend. The dividend will be paid on January 14, 2020 to shareholders of record as of the close of business on December 13, 2019.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-URI http://asc.fasb.org/topic&trid=2122774

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