Debt and Credit Facilities (Tables)

9 Months Ended

Jun. 30, 2014

Debt Disclosure [Abstract]

Borrowing Obligations and Applicable Margin for Borrowings

The applicable margin for the borrowings at June 30, 2014 is as follows:

Description	Base Rate Margin	LIBOR Margin
Term loans maturing August 2019	1.75%	2.75%
Revolving facility due August 2018	0.50% - 0.75% (a)	1.50% - 1.75% (a)

(a) The margin is determined based on our net leverage ratio at the date the interest rates are reset on the revolving credit line.

At June 30, 2014 and September 30, 2013, we had the following borrowing obligations (dollars in thousands):

	June 30, 2014		September 30, 2013
5.375% Senior Notes due 2020, net of unamortized premium of $4.8 million and $5.4 million, respectively. Effective interest rate 5.28%.	$	1,054,797	$	1,055,385
2.75% Convertible Debentures due 2031, net of unamortized discount of $95.1 million and $113.5 million, respectively. Effective interest rate 7.43%.	594,878		576,524
2.75% Convertible Debentures due 2027, net of unamortized discount of $1.3 million and $8.8 million, respectively. Effective interest rate 7.30%.	248,713		241,206
Credit Facility, net of unamortized original issue discount of $1.0 million and $1.2 million respectively.	477,567		481,016
Total long-term debt	$	2,375,955	$	2,354,131
Less: current portion	253,547		246,040
Non-current portion of long-term debt	$	2,122,408	$	2,108,091