Commitments and Contingencies - Additional Information (Detail)			9 Months Ended
	Mar. 13, 2017 USD ($)	Jan. 26, 2017 employee	Oct. 31, 2020 USD ($)
Value-Added Reseller Agreement
Long-term Purchase Commitment [Line Items]
Minimum order commitment			$ 500,000,000
Amount of first minimum order commitment met			250,000,000
Minimum fee commitment obligation			78,000,000
IQVIA Litigation Matter | Minimum
Long-term Purchase Commitment [Line Items]
Monetary damages	$ 200,000,000
Medidata Litigation Matter
Long-term Purchase Commitment [Line Items]
Number of former employees | employee		5
Present to September 1st, 2025 | Value-Added Reseller Agreement
Long-term Purchase Commitment [Line Items]
Minimum order commitment			500,000,000
March 1st 2014 to September 1st, 2020 | Value-Added Reseller Agreement
Long-term Purchase Commitment [Line Items]
Amount of first minimum order commitment met			$ 250,000,000