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No definition available.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16))
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
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-Name Accounting Standards Codification
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-Section S99
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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-Name Accounting Standards Codification
-Topic 944
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-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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Senior Notes, Secured, and Unsecured Indebtedness - Schedule of Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Mar. 09, 2018	Mar. 08, 2018	Dec. 31, 2017	Mar. 31, 2017	Jan. 31, 2017	Aug. 11, 2014	Mar. 31, 2014
Debt Instrument [Line Items]
Total notes payable	$ 172,246			$ 94,515
Total debt	1,302,347			1,030,184
5 3/4% Senior Notes due April 15, 2019
Debt Instrument [Line Items]
Total debt	$ 0			$ 149,362
Stated interest rate	5.75%			5.75%
7% Senior Notes due August 15, 2022
Debt Instrument [Line Items]
Total debt	$ 346,924			$ 346,740
Stated interest rate	7.00%			7.00%
6% Senior Notes due 2023
Debt Instrument [Line Items]
Total debt	$ 343,274			$ 0
Stated interest rate	6.00%
5 7/8% Senior Notes due January 31, 2025
Debt Instrument [Line Items]
Total debt	$ 439,903			439,567
Stated interest rate	5.875%
Seller financing
Debt Instrument [Line Items]
Total notes payable	$ 0			589
Joint venture notes payable
Debt Instrument [Line Items]
Total notes payable	2,291			0
Joint venture notes payable
Debt Instrument [Line Items]
Total notes payable	84,955			93,926
Senior notes
Debt Instrument [Line Items]
Total debt	1,130,101			935,669
Senior notes \| 5 3/4% Senior Notes due April 15, 2019
Debt Instrument [Line Items]
Total debt	$ 0			$ 149,362
Stated interest rate	5.75%			5.75%				5.75%
Senior notes \| 7% Senior Notes due August 15, 2022
Debt Instrument [Line Items]
Total debt	$ 346,924			$ 346,740
Stated interest rate	7.00%			7.00%			7.00%
Senior notes \| 6% Senior Notes due 2023
Debt Instrument [Line Items]
Total debt	$ 343,274			$ 0
Stated interest rate		6.00%	6.00%		8.50%
Senior notes \| 5 7/8% Senior Notes due January 31, 2025
Debt Instrument [Line Items]
Total debt	$ 439,903			439,567
Stated interest rate	5.875%					5.875%
Revolving Credit Facility \| Revolving credit facility
Debt Instrument [Line Items]
Total notes payable	$ 85,000			$ 0