|
Long-Term Debt (Details) (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2012
|
Dec. 31, 2011
|
|---|---|---|
| Long-term debt | ||
| Carrying amount, Total | $ 629,385 | $ 547,619 |
| Less current maturities | (18,587) | (11,608) |
| Long-term debt | 610,798 | 536,011 |
|
9.0% Senior Subordinate Note due 2018 [Member]
|
||
| Long-term debt | ||
| Carrying amount, Total | 210,000 | 210,000 |
|
7.0% Senior Subordinated Notes due 2022 [Member]
|
||
| Long-term debt | ||
| Carrying amount, Total | 200,000 | |
|
5% Convertible Senior Note due 2029 [Member]
|
||
| Long-term debt | ||
| Carrying amount, Total | 155,055 | |
|
Notes Payable to finance company [Member]
|
||
| Long-term debt | ||
| Carrying amount, Total | 10,572 | 13,223 |
|
Mortgage Loan at Fix Interest Rate [Member]
|
||
| Long-term debt | ||
| Carrying amount, Total | 137,791 | 116,584 |
|
Mortgage Loan at Variable Interest Rate [Member]
|
||
| Long-term debt | ||
| Carrying amount, Total | 62,229 | 65,640 |
|
Debt Discount and Premium [Member]
|
||
| Long-term debt | ||
| Carrying amount, Total | (2,814) | (18,635) |
|
Other Debt [Member]
|
||
| Long-term debt | ||
| Carrying amount, Total | 5,431 | 5,752 |
|
2011 Revolving Credit Facility [Member]
|
||
| Long-term debt | ||
| Carrying amount, Total | $ 6,176 |