Slicers (applies to each fact value in each table cell)

Reporting Entity [Axis]

0001166388 (http://www.sec.gov/CIK)

Debt Instrument	Period [Axis]
	2017-01-31					2016-01-31					2014-06-18	2014-03-07	2014-02-03
	Debt Instrument [Axis]					Debt Instrument [Axis]					Debt Instrument [Axis]	Debt Instrument [Axis]	Debt Instrument [Axis]
	1.50% Convertible Senior Notes	February 2014 Term Loans	March 2014 Term Loans	Other debt	Debt Instrument, Name [Domain]	1.50% Convertible Senior Notes	February 2014 Term Loans	March 2014 Term Loans	Other debt	Debt Instrument, Name [Domain]	1.50% Convertible Senior Notes	March 2014 Term Loans	February 2014 Term Loans
Principal Amount - 1.50% Convertible Senior Notes	400,000,000					400,000,000					400,000,000
Gross term loan borrowings		130,060,000	278,978,000				130,729,000	280,413,000				643,500,000	300,000,000
Other Debt				404,000					0
Unamortized debt discounts and issuance costs					(60,571,000)					(73,055,000)
Total debt					748,871,000					738,087,000
Current maturities of long-term debt					4,611,000					2,104,000
Long-term debt					744,260,000					735,983,000