Fair Value Measurement

3 Months Ended

Mar. 31, 2016

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



	March 31, 2016
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value		Cash and Cash Equivalents		Investments
Cash	$	263,502	$	—	$	—	$	263,502	$	263,502	$	—
Time deposits	717,042		—		—		717,042		716,278		764
Totals	$	980,544	$	—	$	—	$	980,544	$	979,780	$	764

	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	$	—

Cash equivalents and investments are considered available-for-sale securities. We use the specific-identification method for calculating realized gains and losses on securities sold and include them in interest expense, net in the condensed consolidated statements of income. Our investment balance represents time deposits with original maturities of greater than 90 days.

The following table summarizes, by major security type, our available-for-sale securities as of March 31, 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):



	March 31, 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	$	717,042	$	717,042	$	713,840	$	713,840

As of March 31, 2016, our available-for-sale securities included time deposits which were measured at fair value using Level 2 inputs and their carrying values were approximately equal to their fair values. Level 2 inputs, obtained from various third party data providers, represent quoted prices for similar assets in active markets, or these inputs were derived from observable market data, or if not directly observable, were derived from or corroborated by other observable market data.

There were no transfers between the different levels of the fair value hierarchy in 2016 or in 2015.

As of March 31, 2016, the estimated fair value of our 2021 Notes was approximately $591 million. The fair value of the 2021 Notes was estimated using quoted market prices obtained from brokers (Level 2). The estimated fair value of our borrowings under our term loan and other borrowings were approximately equal to their respective book values based on the borrowing rates currently available for variable rate loans (Level 2).

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

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