Long-Term Debt (Break-Down Of Long-Term Debt) (Details) - USD ($) $ in Thousands |
Jun. 30, 2015 |
Dec. 31, 2014 |
Mar. 31, 2011 |
|||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Debt Instrument [Line Items] | ||||||||||||||
Unamortized original issue (discount) premium, net (5) | [1] | $ 13,593 | $ 14,658 | |||||||||||
Less: current maturities of long term debt | (1,738) | (168) | ||||||||||||
Long-term debt, net of current maturities | 963,593 | 716,316 | ||||||||||||
Line of Credit [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Long-term debt | 0 | 100,000 | ||||||||||||
Building loans [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Long-term debt | 1,738 | [2] | 1,826 | [2] | $ 2,400 | |||||||||
7.75% Senior Notes [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Long-term debt | [3] | 600,000 | 600,000 | |||||||||||
6.625% Senior Notes [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Long-term debt | [4] | 350,000 | 0 | |||||||||||
Construction Loans [Member] | ||||||||||||||
Debt Instrument [Line Items] | ||||||||||||||
Long-term debt | [1] | $ 0 | $ 0 | |||||||||||
|