Notes Payable and Revolving Loan Agreement (Schedule of Notes Payable And Revolving Line Of Credit) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Notes Payable and Revolving Line of Credit [Abstract]
6.875% senior notes	$ 198,652us-gaap_SeniorLongTermNotes	$ 198,605us-gaap_SeniorLongTermNotes
Revolving line of credit	55,000us-gaap_LineOfCredit	20,000us-gaap_LineOfCredit
Land development notes	5,049us-gaap_LongTermNotesPayable	5,737us-gaap_LongTermNotesPayable
Insurance premium notes	3,402us-gaap_OtherLongTermNotesPayable	5,135us-gaap_OtherLongTermNotesPayable
Capital lease obligations	218	133
Revolving loan agreement	55,000us-gaap_LineOfCredit	20,000us-gaap_LineOfCredit
Carrying amount	$ 262,321us-gaap_LongTermDebt	$ 229,610us-gaap_LongTermDebt

Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal, through the balance sheet date and due to be paid more than one year (or one operating cycle, if longer) after the balance sheet date.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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