Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 7,084	$ 6,821
Trade accounts receivable (Includes $341,274 at March 31, 2016, and $345,372 at December 31, 2015, associated with the receivables credit facility)	372,038	363,869
Other receivables	17,274	18,732
Inventories	335,056	335,903
Prepaid expenses and other current assets	19,298	28,932
Total current assets	750,750	754,257
Plant, property and equipment, net	1,412,379	1,406,146
Other assets	9,298	12,532
Intangible assets, net	335,647	344,583
Goodwill	704,592	704,592
Total assets	3,212,666	3,222,110
Current liabilities:
Short-term borrowings	10,000	6,400
Dividend payable	9,859	9,862
Accounts payable	198,486	196,491
Accrued expenses	65,329	73,138
Accrued compensation costs	48,829	64,149
Accrued income taxes	1,544	15
Total current liabilities	334,047	350,055
Other liabilities:
Long-term debt (Includes $247,584 at March 31, 2016, and $265,614 at December 31, 2015, associated with the receivables credit facility)	1,523,961	1,543,748
Pension and postretirement benefits	39,235	40,510
Deferred income taxes	420,803	418,479
Other liabilities	39,099	24,038
Total other liabilities	2,023,098	2,026,775
Stockholders' equity:
Common stock-$0.0001 par value; 175,000,000 shares authorized; 96,505,133 shares issued and outstanding (excluding 40,000 treasury shares) at March 31, 2016 and 96,327,506 shares issued and outstanding (excluding 40,000 treasury shares) at December 31, 2015	10	10
Additional paid-in-capital	269,482	266,220
Retained earnings	648,768	642,306
Accumulated other comprehensive loss	(62,739)	(63,256)
Total stockholders' equity	855,521	845,280
Total liabilities and stockholders' equity	$ 3,212,666	$ 3,222,110