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

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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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-Name Accounting Standards Codification
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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
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-Name Accounting Standards Codification
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-Section S99
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-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	Sep. 30, 2017	Jan. 31, 2017	Dec. 31, 2016	Nov. 21, 2014	Aug. 11, 2014	Mar. 31, 2014	Nov. 08, 2012
Debt Instrument [Line Items]
Total notes payable	$ 161,011		$ 155,768
Total debt	1,097,633		1,080,650
Subordinated amortizing notes
Debt Instrument [Line Items]
Total debt	1,619		7,225
Stated interest rate				5.50%
5 3/4% Senior Notes due April 15, 2019
Debt Instrument [Line Items]
Total debt	$ 149,226		$ 148,826
Stated interest rate	5.75%		5.75%
8 1/2% Senior Notes due November 15, 2020
Debt Instrument [Line Items]
Total debt	$ 0		$ 422,817
Stated interest rate	8.50%		8.50%
7% Senior Notes due August 15, 2022
Debt Instrument [Line Items]
Total debt	$ 346,556		$ 346,014
Stated interest rate	7.00%		7.00%
Five Point Eight Seven Five Percent Senior Notes Due Two Thousand Twenty Five [Member]
Debt Instrument [Line Items]
Total debt	$ 439,221		$ 0
Stated interest rate	5.875%
Seller financing
Debt Instrument [Line Items]
Total notes payable	$ 5,226		24,692
Seller financing \| Note Payable Maturing in June 2018
Debt Instrument [Line Items]
Stated interest rate	7.00%
Joint venture notes payable
Debt Instrument [Line Items]
Total notes payable	$ 105,785		102,076
Senior notes
Debt Instrument [Line Items]
Total debt	935,003		917,657
Senior notes \| 5 3/4% Senior Notes due April 15, 2019
Debt Instrument [Line Items]
Total debt	$ 149,226		$ 148,826
Stated interest rate	5.75%		5.75%			5.75%
Senior notes \| 8 1/2% Senior Notes due November 15, 2020
Debt Instrument [Line Items]
Total debt	$ 0		$ 422,817
Stated interest rate	8.50%		8.50%				8.50%
Senior notes \| 7% Senior Notes due August 15, 2022
Debt Instrument [Line Items]
Total debt	$ 346,556		$ 346,014
Stated interest rate	7.00%		7.00%		7.00%
Senior notes \| Five Point Eight Seven Five Percent Senior Notes Due Two Thousand Twenty Five [Member]
Debt Instrument [Line Items]
Total debt	$ 439,221		$ 0
Stated interest rate	5.875%	5.875%