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v3.3.1.900

Long-Term Debt (Details) $ in Thousands, ¥ in Billions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2015 USD ($) | Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($) | Dec. 31, 2015 JPY (¥) | Dec. 31, 2014 JPY (¥)
Long-term Debt [Abstract] |  |  |  |  |  |  |  |
Current portion of long-term debt |  | $ 67,849 |  | $ 82,770 |  |  |  |
Debt discount |  | 4,300 |  |  |  |  |  |
Interest expense |  | 7,900 |  | 5,700 |  | $ 3,000 |  |
Maturities of Long-term Debt [Abstract] |  |  |  |  |  |  |  |
2016 |  | 67,849 |  |  |  |  |  |
2017 |  | 34,905 |  |  |  |  |  |
2018 |  | 39,481 |  |  |  |  |  |
2019 |  | 111,664 |  |  |  |  |  |
2020 |  | 0 |  |  |  |  |  |
Thereafter |  | 0 |  |  |  |  |  |
Total | [1] | $ 253,899 |  |  |  |  |  |
Maximum [Member] |  |  |  |  |  |  |  |
Long-term Debt [Abstract] |  |  |  |  |  |  |  |
Consolidated leverage ratio |  | 2.25 |  |  |  |  |  |
Minimum [Member] |  |  |  |  |  |  |  |
Long-term Debt [Abstract] |  |  |  |  |  |  |  |
Consolidated interest coverage ratio |  | 3.00 |  |  |  |  |  |
Term Loan Facility [Member] |  |  |  |  |  |  |  |
Long-term Debt [Abstract] |  |  |  |  |  |  |  |
Original principal amount |  | $ 127,500 |  |  |  |  |  |
Balance | [1],[2] | $ 118,700 |  | 125,900 |  |  |  |
Interest rate |  | Variable 30 day: 2.4815% |  |  |  |  |  |
Interest rate |  | 2.4815% |  |  |  |  | 2.4815% |
Repayment terms |  | One half of the principal amount payable in increasing quarterly installments over a five-year period beginning on December 31, 2014, with the remainder payable at the end of the five-year term. |  |  |  |  |  |
Term of variable rate |  | 30 days |  |  |  |  |  |
Percentage of principal payable in installments |  | 50.00% |  |  |  |  |  |
Frequency of payment |  | Quarterly |  |  |  |  |  |
Current portion of long-term debt |  | $ 57,800 |  |  |  |  |  |
Japanese Yen Term Loan Facility [Member] |  |  |  |  |  |  |  |
Long-term Debt [Abstract] |  |  |  |  |  |  |  |
Original principal amount |  | $ 51,100 | [1],[2] | 54,400 | [1],[2] |  | ¥ 6.6 |
Balance | ¥ | [1],[2] |  |  |  |  |  | ¥ 6.1 | ¥ 6.5
Interest rate |  | Variable 30 day: 2.30% |  |  |  |  |  |
Interest rate |  | 2.30% |  |  |  |  | 2.30% |
Repayment terms |  | One half of the principal amount payable in increasing quarterly installments over a five-year period beginning on December 31, 2014, with the remainder payable at the end of the five-year term. |  |  |  |  |  |
Term of variable rate |  | 30 days |  |  |  |  |  |
Percentage of principal payable in installments |  | 50.00% |  |  |  |  |  |
Frequency of payment |  | Quarterly |  |  |  |  |  |
Current portion of long-term debt |  | $ 4,500 |  |  |  |  |  |
Revolving Credit Facility [Member] |  |  |  |  |  |  |  |
Long-term Debt [Abstract] |  |  |  |  |  |  |  |
Borrowing capacity |  | $ 187,500 |  |  |  |  |  |
Term of loan |  | 5 years |  |  |  |  |  |
Balance | [1],[2] | $ 47,500 |  | 72,500 |  |  |  |
Interest rate |  | Variable 30 day: 2.4815% |  |  |  |  |  |
Interest rate |  | 2.4815% |  |  |  |  | 2.4815% |
Repayment terms |  | Revolving line of credit expires October 2019. |  |  |  |  |  |
Term of variable rate |  | 30 days |  |  |  |  |  |
Korean Subsidiary Loan [Member] |  |  |  |  |  |  |  |
Long-term Debt [Abstract] |  |  |  |  |  |  |  |
Original principal amount |  | $ 20,000 |  |  |  |  |  |
Balance | [1],[2] | $ 20,000 |  | 0 |  |  |  |
Interest rate |  | 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. |  |  |  |  |  |
Percentage of principal payable in installments |  | 50.00% |  |  |  |  |  |
Japan Subsidiary Loan [Member] |  |  |  |  |  |  |  |
Long-term Debt [Abstract] |  |  |  |  |  |  |  |
Term of loan |  | 3 years |  |  |  |  |  |
Original principal amount | ¥ |  |  |  |  |  |  | ¥ 2.0 |
Balance | [1],[2] | $ 16,600 |  | $ 0 |  |  | ¥ 2.0 |
Interest rate |  | 0.66% |  |  |  |  | 0.66% |
Repayment terms |  | Payable in semi-annual installments over three years that began on January 31, 2016. |  |  |  |  |  |
Frequency of payment |  | Semi-annual |  |  |  |  |  |
Current portion of long-term debt |  | $ 5,000 |  |  |  |  |  |
[1] | The carrying value of the debt reflects the amounts stated in the above table less a debt discount of $4.3 million, which is not reflected in this table.
[2] | As of December 31, 2015, the current portion of the Company's debt (i.e. becoming due in the next 12 months) included $57.8 million of the balance of its U.S. dollar denominated debt under the Credit Agreement facility, $4.5 million of the balance of its Japanese yen-denominated debt under the Credit Agreement facility and $5.5 million of the Japan subsidiary loan. The Company has classified the amounts borrowed under the revolving line of credit as short term because it is the Company's intention to use the line of credit to borrow and pay back funds over short periods of time.

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