SEGMENT REPORTING (Total Assets by Geographical Area) (Details) - USD ($) $ in Thousands |
Sep. 30, 2016 |
Dec. 31, 2015 |
---|---|---|
Revenues from External Customers and Long-Lived Assets [Line Items] | ||
Total assets | $ 3,712,613 | $ 3,431,428 |
United States | ||
Revenues from External Customers and Long-Lived Assets [Line Items] | ||
Total assets | 2,944,936 | 2,575,746 |
Canada | ||
Revenues from External Customers and Long-Lived Assets [Line Items] | ||
Total assets | 767,677 | 851,949 |
Other foreign | ||
Revenues from External Customers and Long-Lived Assets [Line Items] | ||
Total assets | $ 0 | $ 3,733 |