Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 23,740	$ 46,216
Receivables, net of allowance of $9,182 and $7,835	269,281	262,773
Inventory	50,404	49,571
Income tax receivable	2,563	512
Deferred income taxes	0	16,521
Prepaid expenses and other current assets	23,776	25,764
Total current assets	369,764	401,357
Property, plant and equipment, net	205,342	203,130
Intangible assets, net of accumulated amortization of $41,583 and $37,309	171,940	176,104
Goodwill	356,347	355,786
Other assets, net	4,734	4,826
Deferred income taxes	5,791	6,215
Total assets	1,113,918	1,147,418
Current liabilities:
Current portion of long-term debt	20,000	20,000
Accounts payable	40,794	47,817
Other accrued liabilities	90,803	79,904
Total current liabilities	151,597	147,721
Deferred income taxes	70,892	93,318
Long-term debt	337,188	346,911
Defined benefit pension liability	20,969	21,239
Other long-term liabilities	2,650	2,592
Total liabilities	583,296	611,781
Commitments and contingencies
Equity:
Preferred stock, 500,000 shares authorized, none issued	0	0
Common stock, par value $0.30 per share, 60,000,000 shares authorized; 29,814,913 and 29,784,734 shares issued	8,943	8,934
Additional paid-in capital	338,734	336,756
Retained earnings	210,434	218,947
Accumulated other comprehensive loss	(27,489)	(29,000)
Total equity	530,622	535,637
Total liabilities and equity	$ 1,113,918	$ 1,147,418