Cash and Cash Equivalents, and Marketable Securities (Tables)	3 Months Ended
Mar. 31, 2020
Cash and Cash Equivalents and Marketable Securities [Abstract]
Cash and Cash Equivalents, and Marketable Securities	The following table sets forth the cash and cash equivalents and marketable securities
Marketable Securities by Contractual Maturities	The following table classifies our marketable securities by contractual maturities

Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments.

No definition available.

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