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v3.7.0.1

DEBT (Details 2) $ / shares in Units, shares in Thousands |  |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Mar. 13, 2017 USD ($) $ / shares | Feb. 01, 2017 d | Jan. 23, 2013 USD ($) $ / shares | May 31, 2017 shares | Mar. 31, 2017 USD ($) shares | Jun. 30, 2017 USD ($) $ / shares | Jun. 30, 2016 USD ($) | Jun. 30, 2017 USD ($) d $ / shares | Jun. 30, 2016 USD ($) | Mar. 07, 2017 $ / shares | Dec. 31, 2016 USD ($)
DEBT AND FINANCING OBLIGATIONS |  |  |  |  |  |  |  |  |  |  |
Closing sale price (in dollars per share) | $ / shares |  |  |  |  |  | $ 47.7 |  | $ 47.7 |  |  |
Estimated conversion value |  |  |  |  |  | $ 300,000 |  | $ 300,000 |  |  |
Convertible debt, number of trading days prior to date on which entity provides notice of redemption |  | 30 days |  |  |  |  |  | 30 days |  |  |
Shares issued to settle the conversion premium | shares |  |  |  | 10 | 2,500 |  |  |  |  |  |
Loss on early extinguishment of debt |  |  |  |  | $ 3,700,000 | 11,000 | $ 0 | $ 3,732,000 | $ 0 |  |
Convertible debt, threshold percentage of stock price trigger |  |  |  |  |  |  |  | 130.00% |  |  |
Convertible debt, threshold trading days | d |  |  |  |  |  |  |  | 20 |  |  |
Repayments of debt |  |  |  |  |  |  |  | $ 118,191,000 | $ 4,000 |  |
Convertible Senior Notes Due 2022 |  |  |  |  |  |  |  |  |  |  |
DEBT AND FINANCING OBLIGATIONS |  |  |  |  |  |  |  |  |  |  |
Initial conversion rate of common stock per $1000 of principal amount of Notes (in shares) | 14.9491 |  |  |  |  |  |  |  |  |  |
Initial conversion price of notes into common stock (in dollars per share) | $ / shares | $ 66.89 |  | $ 66.89 |  |  |  |  |  |  |  |
Convertible debt, premium on common stock | 37.50% |  |  |  |  |  |  |  |  |  |
Closing sale price (in dollars per share) | $ / shares |  |  |  |  |  |  |  |  |  | $ 48.65 |
Debt redemption price due to fundamental change as percentage of principal amount | 100.00% |  |  |  |  |  |  |  |  |  |
Liability component of convertible debt | $ 274,100,000 |  |  |  |  |  |  |  |  |  |
Convertible debt, assumed borrowing rate | 7.45% |  |  |  |  |  |  |  |  |  |
Convertible debt, carrying amount of equity component | $ 70,900,000 |  |  |  |  |  |  |  |  |  |
Total transaction costs related to the issuance of Notes | $ 11,000,000 |  |  |  |  |  |  |  |  |  |
Debt issuance costs, amortization period | 5 years |  |  |  |  |  |  |  |  |  |
Debt customary events of default, percentage of principal and accrued and unpaid interest due and payable upon default | 100.00% |  |  |  |  |  |  |  |  |  |
Convertible Senior Notes Due 2022 | Conversion terms prior to close of business on business day immediately proceeding October 1, 2021 |  |  |  |  |  |  |  |  |  |  |
DEBT AND FINANCING OBLIGATIONS |  |  |  |  |  |  |  |  |  |  |
Convertible debt, common stock closing sales price minimum, number of trading days | 20 days |  |  |  |  |  |  |  |  |  |
Convertible debt, number of consecutive trading days | 30 days |  |  |  |  |  |  |  |  |  |
Convertible debt, common stock closing sales price minimum as percentage of conversion price | 130.00% |  |  |  |  |  |  |  |  |  |
Convertible debt, number of consecutive business days after consecutive trading day period | 5 days |  |  |  |  |  |  |  |  |  |
Convertible debt, period of consecutive trading days | 5 days |  |  |  |  |  |  |  |  |  |
Principal amount used for debt instrument conversion ratio | $ 1,000 |  |  |  |  | 1,000 |  | 1,000 |  |  |
Convertible debt, trading price as percentage of product of last reported common stock sale price and conversion rate maximum | 98.00% |  |  |  |  |  |  |  |  |  |
Market price per $1000 of principal amount of notes |  |  |  |  |  | 1,067 |  | 1,067 |  |  |
Convertible Senior Notes Due 2022 | Debt Redemption Terms on or after April 1, 2020 |  |  |  |  |  |  |  |  |  |  |
DEBT AND FINANCING OBLIGATIONS |  |  |  |  |  |  |  |  |  |  |
Convertible debt, common stock closing sales price minimum, number of trading days | 20 days |  |  |  |  |  |  |  |  |  |
Convertible debt, number of consecutive trading days | 30 days |  |  |  |  |  |  |  |  |  |
Convertible debt, common stock closing sales price minimum as percentage of conversion price | 130.00% |  |  |  |  |  |  |  |  |  |
Convertible debt, number of trading days prior to date on which entity provides notice of redemption | 5 days |  |  |  |  |  |  |  |  |  |
Debt Instrument, Percentage of Principal Amount for Computation of Redemption Price | 100.00% |  |  |  |  |  |  |  |  |  |
Convertible Senior Notes Due 2019 |  |  |  |  |  |  |  |  |  |  |
DEBT AND FINANCING OBLIGATIONS |  |  |  |  |  |  |  |  |  |  |
Principal amount used for debt instrument conversion ratio |  |  |  |  |  | $ 1,000 |  | $ 1,000 |  |  |
Initial conversion rate of common stock per $1000 of principal amount of Notes (in shares) |  |  |  |  |  |  |  | 40.2945 |  |  |
Initial conversion price of notes into common stock (in dollars per share) | $ / shares |  |  | $ 24.82 |  |  | $ 24.82 |  | $ 24.82 |  |  |
Debt repurchased face amount |  |  |  |  | 117,700,000 | $ 500,000 |  | $ 500,000 |  |  |
Debt repurchase amount |  |  |  |  | $ 118,200,000 | 500,000 |  | 500,000 |  |  |
Convertible notes outstanding amount |  |  |  |  |  | 300,000 |  | 300,000 |  |  |
Repayments of debt |  |  |  |  |  |  |  | 300,000 |  |  |
Convertible Senior Notes Due 2019 | Conversion terms, prior to close of business on business day immediately preceding August 1, 2018 |  |  |  |  |  |  |  |  |  |  |
DEBT AND FINANCING OBLIGATIONS |  |  |  |  |  |  |  |  |  |  |
Principal amount used for debt instrument conversion ratio |  |  |  |  |  | 1,000 |  | 1,000 |  |  |
Market price per $1000 of principal amount of notes |  |  |  |  |  | 1,923 |  | 1,923 |  |  |
Estimated conversion value |  |  |  |  |  | 1,922 |  | 1,922 |  |  |
Convertible Senior Notes Due 2019 | Debt Redemption Terms on or after February 1, 2017 |  |  |  |  |  |  |  |  |  |  |
DEBT AND FINANCING OBLIGATIONS |  |  |  |  |  |  |  |  |  |  |
Convertible debt, number of trading days prior to date on which entity provides notice of redemption |  | 5 days |  |  |  |  |  |  |  |  |
Convertible debt, threshold percentage of stock price trigger |  | 130.00% |  |  |  |  |  |  |  |  |
Convertible debt, threshold trading days | d |  | 20 |  |  |  |  |  |  |  |  |
Unsecured Debt | Convertible Senior Notes Due 2022 |  |  |  |  |  |  |  |  |  |  |
DEBT AND FINANCING OBLIGATIONS |  |  |  |  |  |  |  |  |  |  |
Debt issued in private placement | $ 345,000,000 |  |  |  |  |  |  |  |  |  |
Stated interest rate (as a percent) | 2.375% |  |  |  |  |  |  |  |  |  |
Net proceeds from issuance of convertible debt | $ 334,000,000 |  |  |  |  |  |  |  |  |  |
Convertible notes outstanding amount |  |  |  |  |  | 269,328,000 |  | 269,328,000 |  |  | $ 0
Unsecured Debt | Convertible Senior Notes Due 2019 |  |  |  |  |  |  |  |  |  |  |
DEBT AND FINANCING OBLIGATIONS |  |  |  |  |  |  |  |  |  |  |
Debt issued in private placement |  |  | $ 120,000,000 |  |  |  |  |  |  |  |
Stated interest rate (as a percent) |  |  | 3.25% |  |  |  |  |  |  |  |
Convertible notes outstanding amount |  |  |  |  |  | $ 319,000 |  | $ 319,000 |  |  | $ 108,738,000

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