Long-Term Debt (Break-Down Of Long-Term Debt) (Details) (USD $)
In Thousands, unless otherwise specified |
Jun. 30, 2013
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Dec. 31, 2012
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Jun. 30, 2013
Line of Credit [Member]
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Dec. 31, 2012
Line of Credit [Member]
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Jun. 30, 2013
Building loans [Member]
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Dec. 31, 2012
Building loans [Member]
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Mar. 31, 2011
Building loans [Member]
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Jun. 30, 2013
7.75% senior unsecured notes due 2020 [Member]
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Dec. 31, 2012
7.75% senior unsecured notes due 2020 [Member]
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Oct. 17, 2012
7.75% senior unsecured notes due 2020 [Member]
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Debt Instrument [Line Items] | |||||||||||||||||||||||||||
Long-tern debt | [1] | [1] | $ 2,070 | [2] | $ 2,143 | [2] | $ 2,400 | $ 300,000 | [3] | $ 300,000 | [3] | $ 300,000 | [3] | ||||||||||||||
Unamortized original issue (discount) premium, net | (2,960) | [4] | (3,105) | [4] | |||||||||||||||||||||||
Current maturities of long-term debt | (154) | (150) | |||||||||||||||||||||||||
Long-term debt, net of current maturities | $ 298,956 | $ 298,888 | |||||||||||||||||||||||||
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