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Subsequent Events	6 Months Ended
Subsequent Events	Jul. 31, 2020
Subsequent Events [Abstract]
Subsequent Events	Subsequent Event On September 8, 2020, the Company acquired StellaService Inc., a privately-held company, for approximately $100.0 million in cash. StellaService Inc. is a customer feedback and quality management platform that helps customer support teams to analyze and improve performance in real time. On September 4, 2020, the Company entered into the Wells Fargo Bank, National Association (Wells Fargo) credit facility to provide for a senior secured revolving line of credit of up to $50.0 million with the right (subject to certain conditions) to add incremental revolving commitments of up to $50.0 million in the aggregate. The revolving line of credit provides a sublimit of up to $40.0 million to be available for the issuance of letters of credit. In connection with entering into the Wells Fargo credit facility, the Company paid all outstanding amounts owing under the Silicon Valley Bank revolving line of credit and terminated the credit facility. The Company continues to have unsecured letters of credit issued by by Silicon Valley Bank in the face amount of $4.7 million outstanding.