STATEMENTS OF CASH FLOWS Table 2 (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
|
| Supplemental Cash Flow Information [Abstract] | |||
| Cash paid for interest, net of amount capitalized | $ 133,388 | $ 129,377 | $ 113,805 |
| Cash paid for income taxes, net of tax refunds received | $ 9,971 | $ 6,699 | $ 11,386 |