Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2015

Schedule of available-for-sale securities


	September 30, 2015								December 31, 2014
	Cost		Unrealized Gain		Unrealized (Loss)		Estimated Fair Value		Cost		Unrealized Gain		Unrealized (Loss)		Estimated Fair Value
	(in thousands)
Money market deposits	$	183,250	$	—	$	—	$	183,250	$	—	$	—	$	—	$	—
U.S. Treasury securities		18,258		15		—		18,273		—		—		—		—
U.S. agency securities		8,095		21		—		8,116		—		—		—		—
Total	$	209,603	$	36	$	—	$	209,639	$	—	$	—	$	—	$	—

Classified as:
Cash equivalents							$	183,250							$	—
Short-term investments								26,389								—
Long-term investments								—								—
Total							$	209,639							$	—

- Definition

Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities.

+ References + Details