Revenue - Summary of revenue disaggregated by type (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Revenue from External Customer [Line Items]
Total Business Revenue	$ 245,382	$ 146,261
Revenues	603,877	260,178
Business Revenue - Apps [Member]
Revenue from External Customer [Line Items]
Total Business Revenue	156,963	99,749
Business Revenue - Software Platform [Member]
Revenue from External Customer [Line Items]
Total Business Revenue	88,419	46,512
Consumer Revenue [Member]
Revenue from External Customer [Line Items]
Revenues	$ 358,495	$ 113,917