Quarterly report pursuant to Section 13 or 15(d)

LONG-TERM DEBT (Senior Notes) (Details)

v2.4.0.8
LONG-TERM DEBT (Senior Notes) (Details) (USD $)
Share data in Millions, except Per Share data, unless otherwise specified
1 Months Ended 6 Months Ended 1 Months Ended 1 Months Ended
Jun. 30, 2014
5.375% Senior Notes due 2022 [Member]
May 31, 2014
5.375% Senior Notes due 2022 [Member]
May 31, 2014
5.375% Senior Notes due 2022 [Member]
Prior to June 15, 2017 [Member]
May 31, 2014
5.375% Senior Notes due 2022 [Member]
Redemption, Equity Offering [Member]
May 31, 2014
5.375% Senior Notes due 2022 [Member]
After June 15, 2017 [Member]
May 31, 2014
5.375% Senior Notes due 2022 [Member]
Redemption, Defined Changes of Control [Member]
May 31, 2014
2.5% Convertible Senior Notes Due 2019 [Member]
Jun. 30, 2014
2.5% Convertible Senior Notes Due 2019 [Member]
May 31, 2014
2.5% Convertible Senior Notes Due 2019 [Member]
Redemption, Defined Changes of Control [Member]
Jun. 30, 2014
2.875% Convertible Senior Notes Due 2027 [Member]
Dec. 31, 2013
2.875% Convertible Senior Notes Due 2027 [Member]
Jun. 30, 2013
2.875% Convertible Senior Notes Due 2027 [Member]
Jul. 31, 2014
Subsequent Event [Member]
2.875% Convertible Senior Notes Due 2027 [Member]
Sep. 30, 2014
Scenario, Forecast [Member]
2.875% Convertible Senior Notes Due 2027 [Member]
Debt Instrument [Line Items]                            
Face amount   $ 250,000,000         $ 275,000,000 $ 275,000,000            
Interest rate, stated percentage 5.375% 5.375%         2.50% 2.50%   2.875% 2.875% 2.875% 2.875%  
Percentage of notes which may be redeemed       35.00%                    
Redemption price, percentage     100.00% 105.375% 104.0313% 101.00%     100.00%         100.00%
Conversion ratio             0.0288363              
Conversion premium             52.50%              
Last reported sale price used to calculate conversion premium             $ 22.74              
Maximum number of shares issuable upon conversion             7.9              
Carrying amount of equity component               $ 22,000,000            
Debt discount amortization period               4 years 6 months            
Effective interest rate               5.00%