SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

9 Months Ended

Sep. 30, 2014

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Abstract]

Revenue

	Three Months Ended		Nine Months Ended
	September 30		September 30
in thousands	2014	2013	2014	2013
Product sales	$     795,096	$     746,392	$  2,034,521	$  1,915,032
Freight and delivery revenues	78,483	67,176	204,621	175,431
Total revenues	$     873,579	$     813,568	$  2,239,142	$  2,090,463

Weighted-Average Common Shares Outstanding

	Three Months Ended		Nine Months Ended
	September 30			September 30
in thousands	2014	2013		2014	2013
Weighted-average common shares
outstanding	131,797	130,266		131,256	130,234
Dilutive effect of
Stock options/SOSARs	661	405		671	449
Other stock compensation plans	911	649		832	685
Weighted-average common shares
outstanding, assuming dilution	133,369	131,320		132,759	131,368

Antidilutive Common Stock Equivalents

	Three Months Ended		Nine Months Ended
	September 30			September 30
in thousands	2014	2013		2014	2013
Antidilutive common stock equivalents	2,355	2,899		2,355	2,899