Cash, Cash Equivalents, Short-term and Long-term Investments, Amortized Cost

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- Definition

Cash, Cash Equivalents, Short-term and Long-term Investments, Fair Value

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- Definition

Cash, Cash Equivalents, Short-term and Long-term Investments, Gross Unrealized Gain

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- Definition

Cash, Cash Equivalents, Short-term and Long-term Investments, Gross Unrealized Loss

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- Definition

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 25

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Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

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Amount before tax of unrealized loss in accumulated other comprehensive income (AOCI) on investments in debt and equity securities classified as available-for-sale.

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This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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The total amount of investments that are intended to be held for an extended period of time (longer than one operating cycle).

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Investments which are intended to be sold in the short term (usually less than one year or the normal operating cycle, whichever is longer) including trading securities, available-for-sale securities, held-to-maturity securities, and other short-term investments not otherwise listed in the existing taxonomy.

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CASH, CASH EQUIVALENTS AND INVESTMENTS (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Schedule of Cash, Cash Equivalents and Investments [Line Items]
Cash and cash equivalents	$ 276,850	$ 232,704	$ 228,776	$ 209,335
Short-term investments (due in 1 year or less)	97,859us-gaap_ShortTermInvestments	102,717us-gaap_ShortTermInvestments
Long-term investments (due in 1 to 3 years)	107,590us-gaap_LongTermInvestments	100,342us-gaap_LongTermInvestments
Total cash, cash equivalents and investments measured at fair value, amortized cost	481,956	435,516
Total cash, cash equivalents and investments measured at fair value, gross unrealized gain	393	276
Total cash, cash equivalents and investments measured at fair value, gross unrealized loss	(50)	(29)
Total cash, cash equivalents and investments measured at fair value, fair value	482,299	435,763
Level 2
Schedule of Cash, Cash Equivalents and Investments [Line Items]
Cash and cash equivalents	3,500	0
Available-for-sale Securities, amortized cost basis	203,208	201,033
Available-for-sale Securities, gross unrealized gains	246	245
Available-for-sale Securities, gross unrealized losses	(25)	(26)
Available-for-sale Securities, fair value	203,429	201,252
Short-term investments (due in 1 year or less)	92,339	100,910
Long-term investments (due in 1 to 3 years)	107,590	100,342
Cash
Schedule of Cash, Cash Equivalents and Investments [Line Items]
Cash and cash equivalents	273,350	232,704
Mutual Funds \| Level 1
Schedule of Cash, Cash Equivalents and Investments [Line Items]
Cash and cash equivalents	0	0
Available-for-sale Securities, amortized cost basis	5,398	1,779
Available-for-sale Securities, gross unrealized gains	147	31
Available-for-sale Securities, gross unrealized losses	(25)	(3)
Available-for-sale Securities, fair value	5,520	1,807
Short-term investments (due in 1 year or less)	5,520	1,807
Long-term investments (due in 1 to 3 years)	0	0
Government Agency Securities \| Level 2
Schedule of Cash, Cash Equivalents and Investments [Line Items]
Cash and cash equivalents	0	0
Available-for-sale Securities, amortized cost basis	89,875	53,976
Available-for-sale Securities, gross unrealized gains	37	43
Available-for-sale Securities, gross unrealized losses	(22)	(9)
Available-for-sale Securities, fair value	89,890	54,010
Short-term investments (due in 1 year or less)	43,024	21,325
Long-term investments (due in 1 to 3 years)	46,866	32,685
Commercial Paper-not included in Cash and Cash Equivalents \| Level 2
Schedule of Cash, Cash Equivalents and Investments [Line Items]
Available-for-sale Securities, amortized cost basis	17,574	47,766
Available-for-sale Securities, gross unrealized gains	10	7
Available-for-sale Securities, gross unrealized losses	0	0
Available-for-sale Securities, fair value	17,584	47,773
Short-term investments (due in 1 year or less)	14,084	47,773
Long-term investments (due in 1 to 3 years)	0	0
Commercial Paper \| Level 2
Schedule of Cash, Cash Equivalents and Investments [Line Items]
Cash and cash equivalents	3,500	0
Corporate Bonds \| Level 2
Schedule of Cash, Cash Equivalents and Investments [Line Items]
Cash and cash equivalents	0	0
Available-for-sale Securities, amortized cost basis	95,759	98,289
Available-for-sale Securities, gross unrealized gains	199	195
Available-for-sale Securities, gross unrealized losses	(3)	(17)
Available-for-sale Securities, fair value	95,955	98,467
Short-term investments (due in 1 year or less)	35,231	30,810
Long-term investments (due in 1 to 3 years)	60,724	67,657
Certificates of Deposits (CDs) \| Level 2
Schedule of Cash, Cash Equivalents and Investments [Line Items]
Cash and cash equivalents		0
Available-for-sale Securities, amortized cost basis		1,002
Available-for-sale Securities, gross unrealized gains		0
Available-for-sale Securities, gross unrealized losses		0
Available-for-sale Securities, fair value		1,002
Short-term investments (due in 1 year or less)		1,002
Long-term investments (due in 1 to 3 years)		$ 0