Fair Value Measurement (Tables)

9 Months Ended

Sep. 30, 2016

Cash and Cash Equivalents and Investments

Cash, cash equivalents and investments consisted of the following (in thousands):



	September 30, 2016
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value		Cash and Cash Equivalents		Investments
Cash	$	211,567	$	—	$	—	$	211,567	$	211,567	$	—
Time deposits	214,418		—		—		214,418		155,000		59,418
Totals	$	425,985	$	—	$	—	$	425,985	$	366,567	$	59,418

	December 31, 2015
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value		Cash and Cash Equivalents		Investments
Cash	$	274,945	$	—	$	—	$	274,945	$	274,945	$	—
Time deposits	713,840		—		—		713,840		713,840		—
Totals	$	988,785	$	—	$	—	$	988,785	$	988,785	$	—

Available-for-Sale Securities Measured at Fair Value on a Recurring Basis

The following table summarizes, by major security type, our available-for-sale securities as of September 30, 2016 and December 31, 2015 that were measured at fair value on a recurring basis and were categorized using the fair value hierarchy (in thousands):



	September 30, 2016				December 31, 2015
	Significant Other Observable Inputs (Level 2)		Total Estimated Fair Value		Significant Other Observable Inputs (Level 2)		Total Estimated Fair Value
Time deposits	$	214,418	$	214,418	$	713,840	$	713,840