CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
NET SALES	$ 413,126	$ 362,408	$ 737,355	$ 640,090
COST OF SALES	354,273	322,727	636,316	580,680
Gross profit	58,853	39,681	101,039	59,410
GENERAL AND ADMINISTRATIVE EXPENSES	14,974	9,953	28,649	18,321
SELLING EXPENSES	7,734	5,482	15,401	8,978
AMORTIZATION OF INTANGIBLES	5,454	3,454	10,824	4,192
ACQUISITION EXPENSES	239	12,224	857	13,902
Income from operations	30,452	8,568	45,308	14,017
OTHER INCOME (EXPENSE):
Interest expense	(6,577)	(5,441)	(14,112)	(6,174)
Other, net	(333)	(56)	1,905	(60)
Income before income taxes	23,542	3,071	33,101	7,783
INCOME TAX EXPENSE	9,407	1,129	13,231	777
Net income	$ 14,135	$ 1,942	$ 19,870	$ 7,006
BASIC AND DILUTED NET INCOME PER SHARE	$ 0.20	$ 0.03	$ 0.29	$ 0.10