Long-Term Debt (Break-Down Of Long-Term Debt) (Details) (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2014
|
Dec. 31, 2013
|
Mar. 31, 2011
|
Aug. 18, 2014
|
|||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Debt Instrument [Line Items] | |||||||||||||||
Long-tern debt | $ 701,826 | ||||||||||||||
Unamortized original issue (discount) premium, net | 14,658 | [1] | (2,808) | [1] | |||||||||||
Current maturities of long-term debt | (168) | (159) | |||||||||||||
Long-term debt, net of current maturities | 716,316 | 299,028 | |||||||||||||
Line of Credit [Member] | |||||||||||||||
Debt Instrument [Line Items] | |||||||||||||||
Long-tern debt | 100,000 | [2] | 0 | [2] | |||||||||||
Building loans [Member] | |||||||||||||||
Debt Instrument [Line Items] | |||||||||||||||
Long-tern debt | 1,826 | [3] | 1,995 | [3] | 2,400 | ||||||||||
7.75% senior unsecured notes due 2020 [Member] | |||||||||||||||
Debt Instrument [Line Items] | |||||||||||||||
Long-tern debt | $ 600,000 | [4] | $ 300,000 | [4] | $ 600,000 | [4] | |||||||||
|