Fair Value Measurement (Tables)

3 Months Ended

Mar. 31, 2016

Fair Value Assets Measured on Recurring Basis

The following tables set forth the Company’s financial assets measured at fair value on a recurring basis as of March 31, 2016 and December 31, 2015, based on the three-tier fair value hierarchy:

As of March 31, 2016	Level 1		Level 2		Total
Bank deposits	$	609,247	$	—	$	609,247
Money market funds		1,053,184		—		1,053,184
Cash and cash equivalents		1,662,431		—		1,662,431
Total	$	1,662,431	$	—	$	1,662,431

As of December 31, 2015	Level 1		Level 2		Total
Bank deposits	$	440,809	$	—	$	440,809
Money market funds		1,732,449		—		1,732,449
Cash and cash equivalents		2,173,258		—		2,173,258
Corporate debt securities		1,401,453		—		1,401,453
Commercial paper		249,888		—		249,888
Short term investments		1,651,341		—		1,651,341
Total	$	3,824,599	$	—	$	3,824,599