Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 72,819	$ 53,533
Trade accounts receivable, less allowances of $5,095 and $5,339, respectively	511,332	454,637
Inventories	634,806	721,290
Prepaid expenses and other current assets	71,177	62,462
Total current assets	1,290,134	1,291,922
Property, plant and equipment, net	1,517,510	1,489,872
Goodwill	1,148,302	1,171,454
Other intangible assets, net	383,448	417,088
Other assets, net	239,900	275,113
Total assets	4,579,294	4,645,449
Current liabilities:
Revolving loans and current portion of long-term debt	170,214	108,789
Trade accounts payable	712,739	659,629
Accrued payroll and related costs	68,773	66,257
Accrued liabilities	127,342	123,602
Total current liabilities	1,079,068	958,277
Long-term debt	2,134,400	2,438,502
Deferred income taxes	268,036	262,394
Other liabilities	216,525	220,211
Commitments and contingencies
Stockholders’ equity:
Common stock ($0.01 par value per share; 400,000,000 and 200,000,000 shares authorized, 175,112,496 shares issued and 110,429,596 and 110,385,344 shares outstanding, respectively)	1,751	1,751
Paid-in capital	276,062	262,201
Retained earnings	1,997,785	1,809,845
Accumulated other comprehensive loss	(268,808)	(188,973)
Treasury stock at cost (64,682,900 and 64,727,152 shares, respectively)	(1,125,525)	(1,118,759)
Total stockholders’ equity	881,265	766,065
Liabilities and Equity, Total	$ 4,579,294	$ 4,645,449