Obligation as of the balance sheet date representing the amount due under a repurchase credit facility.

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Net carrying value as of the balance sheet date of notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

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Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized.

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- Definition

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

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Debt and Credit Facilities (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014
Debt
Senior notes and convertible senior notes, gross	$ 1,272,500		$ 1,398,981
Debt discount	(1,342)		(1,673)
Senior notes and convertible senior notes, net	1,271,158		1,397,308
Total debt	1,295,953		1,403,079
Financial services credit facilities	$ 122,607		129,389
5.4 percent senior notes due January 2015
Debt
Interest rate stated percentage	5.40%	5.40%
8.4 percent senior notes due May 2017
Debt
Interest rate stated percentage	8.40%
6.6 percent senior notes due May 2020
Debt
Interest rate stated percentage	6.60%
5.4 percent senior notes due October 2022
Debt
Interest rate stated percentage	5.40%
1.6 percent convertible senior notes due May 2018
Debt
Interest rate stated percentage	1.60%
0.25 percent convertible senior notes due June 2019
Debt
Interest rate stated percentage	0.25%
Nonrecourse secured notes
Debt
Secured notes payable	$ 24,800		5,800
Senior notes \| 5.4 percent senior notes due January 2015
Debt
Senior notes and convertible senior notes, gross	0		126,481
Senior notes \| 8.4 percent senior notes due May 2017
Debt
Senior notes and convertible senior notes, gross	230,000		230,000
Senior notes \| 6.6 percent senior notes due May 2020
Debt
Senior notes and convertible senior notes, gross	300,000		300,000
Senior notes \| 5.4 percent senior notes due October 2022
Debt
Senior notes and convertible senior notes, gross	250,000		250,000
Convertible senior notes \| 1.6 percent convertible senior notes due May 2018
Debt
Senior notes and convertible senior notes, gross	225,000		225,000
Convertible senior notes \| 0.25 percent convertible senior notes due June 2019
Debt
Senior notes and convertible senior notes, gross	267,500		267,500
Secured Debt \| Nonrecourse secured notes
Debt
Secured notes payable	$ 24,795		$ 5,771