15.	Senior Notes Payable

Senior notes payable consisted of the following at:

	September 30, 2016		December 31, 2015
	(Dollars in thousands)

10.75% Senior Notes due September 2016	$	―	$	275,845
8.4% Senior Notes due May 2017		238,625		248,975
8.375% Senior Notes due May 2018		574,397		574,058
1.625% Convertible Senior Notes due May 2018		219,396		301,754
0.25% Convertible Senior notes due June 2019		252,357		248,098
6.625% Senior Notes due May 2020		321,402		325,882
8.375% Senior Notes due January 2021		394,970		394,152
6.25% Senior Notes due December 2021		297,504		297,148
5.375% Senior Notes due October 2022		249,197		249,096
5.875% Senior Notes due November 2024		296,886		296,598
5.25% Senior Notes due June 2026		297,428		―
1.25% Convertible Senior Notes due August 2032		251,637		250,410
	$	3,393,799	$	3,462,016

The carrying amount of our senior notes listed above are net of debt issuance costs and any discounts and premiums that are amortized to interest costs over the respective terms of the notes.

The Company's 1.625% Convertible Senior Notes due 2018 (the "1.625% Convertible Notes") are senior unsecured obligations of the Company and are guaranteed by the guarantors of our other senior notes on a senior unsecured basis. The 1.625% Convertible Notes bear interest at a rate of 1.625% per year and will mature on May 15, 2018, unless earlier converted or repurchased. The holders may convert their 1.625% Convertible Notes at any time into shares of the Company's common stock at a conversion rate of 31.8482 shares of common stock per $1,000 of their principal amount (which is equal to a conversion price of approximately $31.40 per share), subject to adjustment. The Company may not redeem the 1.625% Convertible Notes prior to the stated maturity date.

The Company's 0.25% Convertible Senior Notes due 2019 (the "0.25% Convertible Notes") are senior unsecured obligations of the Company and are guaranteed by the guarantors of our other senior notes on a senior unsecured basis. The 0.25% Convertible Notes bear interest at a rate of 0.25% per year and will mature on June 1, 2019, unless earlier converted, redeemed or repurchased. The holders may convert their 0.25% Convertible Notes at any time into shares of the Company's common stock at a conversion rate of 13.6003 shares of common stock per $1,000 of their principal amount (which is equal to a conversion price of approximately $73.53 per share), subject to adjustment. The Company may not redeem the 0.25% Convertible Notes prior to June 6, 2017. On or after that date, the Company may redeem for cash any or all of the 0.25% Convertible Notes, at its option, if the closing sale price of its common stock for at least 20 trading days (whether or not consecutive) during any 30 consecutive trading day period ending within 5 trading days immediately preceding the date on which it provides notice of redemption, including the last trading day of such 30 day trading period, exceeds 130 percent of the applicable conversion price on each applicable trading day. The redemption price will equal 100 percent of the principal amount of the 0.25% Convertible Notes to be redeemed, plus accrued and unpaid interest to, but excluding, the redemption date.

The Company's 1.25% Convertible Senior Notes due 2032 (the "1.25% Convertible Notes") are senior unsecured obligations of the Company and are guaranteed by the guarantors of our other senior notes on a senior unsecured basis. The 1.25% Convertible Notes bear interest at a rate of 1.25% per year and will mature on August 1, 2032, unless earlier converted, redeemed or repurchased. The holders may convert their 1.25% Convertible Notes at any time into shares of the Company's common stock at a conversion rate of 24.8656 shares of common stock per $1,000 of their principal amount (which is equal to a conversion price of approximately $40.22 per share), subject to adjustment. The Company may not redeem the 1.25% Convertible Notes prior to August 5, 2017. On or after August 5, 2017 and prior to the maturity date, the Company may redeem for cash all or part of the 1.25% Convertible Notes at a redemption price equal to 100% of the principal amount of the 1.25% Convertible Notes being redeemed. On each of August 1, 2017, August 1, 2022 and August 1, 2027, holders of the 1.25% Convertible Notes may require the Company to purchase all or any portion of their 1.25% Convertible Notes for cash at a price equal to 100% of the principal amount of the 1.25% Convertible Notes to be repurchased.

Our senior notes payable are all senior obligations and rank equally with our other existing senior indebtedness and, with the exception of our Convertible Notes, are redeemable at our option, in whole or in part, pursuant to a "make whole" formula. These notes contain various restrictive covenants, including, but not limited to, a limitation on secured indebtedness and a restriction on sale leaseback transactions. As of September 30, 2016, we were in compliance with the covenants required by our senior notes.