INCOME TAXES (Components of Deferred Tax Assets and Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Deferred tax assets
Purchase interest step-up	$ 310,132	$ 181,257
Net operating loss carry forwards	14,327	6,087
Other	21,423	9,503
Total deferred tax assets	345,882	196,847
Valuation allowances	0	0
Total deferred tax assets, net	345,882	196,847
Deferred tax liabilities
Property, plant and equipment	140,330	69,088
Inventory	9,390	6,534
Other	1,399	646
Total deferred tax liabilities	151,119	76,268
Net deferred tax assets (liabilities)	$ 194,763	$ 120,579