DEBT (Details) ¥ in Billions	6 Months Ended
	Jun. 30, 2015 USD ($)		Jun. 30, 2015 JPY (¥)		Mar. 31, 2015 USD ($)	Mar. 31, 2015 JPY (¥)	Dec. 31, 2014 USD ($)
Debt Instrument [Line Items]
Current portion of long-term debt	$ 74,966,000						$ 82,770,000
Debt discount	4,900,000.0000000000
Credit Agreement term loan facility U.S. dollar denominated [Member]
Debt Instrument [Line Items]
Original principal amount - facilities	127,500,000
Balance - facilities	$ 122,700,000	[1],[2]			$ 125,900,000
Repayment terms	One half of the principal amount payable in increasing quarterly installments over a five-year period that began on December 31, 2014, with the remainder payable at the end of the five-year term.
Interest rate description - other borrowings	Variable 30 day: 2.4354
Interest rate - other borrowings (in hundredths)	2.4354%		2.4354%
Credit Agreement term loan facility Japanese Yen denominated [Member]
Debt Instrument [Line Items]
Original principal amount - facilities | ¥			¥ 6.6
Balance - facilities	$ 51,800,000	[1],[2]	¥ 6.3	[1],[2]	54,400,000	¥ 6.5
Repayment terms	One half of the principal amount payable in increasing quarterly installments over a five-year period that began on December 31, 2014, with the remainder payable at the end of the five-year term.
Interest rate description - other borrowings	Variable 30 day: 2.31786
Interest rate - other borrowings (in hundredths)	2.31786%		2.31786%
Credit Agreement revolving credit facility [Member]
Debt Instrument [Line Items]
Original principal amount - facilities	$ 0
Balance - facilities	$ 62,500,000	[1],[2]			72,500,000
Repayment terms	Revolving line of credit expires October 2019.
Interest rate description - other borrowings	Variable 30 day: 2.4354
Interest rate - other borrowings (in hundredths)	2.4354%		2.4354%
Korea Subsidiary Loan [Member]
Debt Instrument [Line Items]
Original principal amount - facilities	$ 20,000,000
Balance - facilities	$ 20,000,000	[1],[2]			$ 0
Interest rate - facilities (in hundredths)	1.12%		1.12%
Repayment terms	One half of the principal amount payable on March 17, 2017 and the remainder payable on March 16, 2018.
Multi-currency uncommitted shelf facility, total U.S. dollar-denominated debt [Member]
Debt Instrument [Line Items]
Current portion of long-term debt	$ 71,300,000
Multi-currency uncommitted shelf facility, total Japanese yen-denominated debt [Member]
Debt Instrument [Line Items]
Balance - other borrowings	$ 3,700,000

[1] As of March 31, 2015, the current portion of the Company's debt (i.e. becoming due in the next 12 months) included $80.5 million of the balance of its U.S. dollar denominated debt under the Credit Agreement facility and $3.4 million of the balance of its Japanese yen-denominated debt under the Credit Agreement facility. The Company has classified the amount borrowed under the revolving line of credit as short term because it is the Company's intention to use this line of credit to borrow and pay back funds over short periods of time.

[2] The carrying value of the debt reflects the amounts stated in the above table less a debt discount of $5.2 million, which is not reflected in this table.