Condensed Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Net sales	$ 674,700	$ 738,551	$ 2,176,678	$ 2,326,388
Cost of sales	581,661	663,536	1,842,512	2,065,095
Selling, general and administrative	48,499	53,658	139,381	163,004
Transaction costs	7,630	8,235	67,270	16,907
Depreciation	11,309	12,323	40,195	38,911
Amortization	2,338	2,342	7,022	7,025
Equity in losses (earnings) of investees	(95)	105	88	437
Operating income (loss)	23,168	(1,438)	80,386	35,883
Interest income	607	600	1,909	1,905
Interest expense	(7,624)	(15,564)	(26,190)	(46,331)
Loss on debt extinguishment	0	0	(36,212)	(521)
Other income (expense), net	(895)	(1,036)	(2,450)	(5,172)
Income (loss) before income taxes	15,256	(17,438)	17,443	(14,236)
Income tax benefit (expense)	(5,087)	(518)	(12,312)	(10,487)
Net income (loss)	$ 10,169	$ (17,956)	$ 5,131	$ (24,723)