Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash flows from operating activities:
Net income	$ 42,029	$ 26,481	$ 138,775
Adjustments to reconcile net income to net cash provided by operating activities, net of acquisition:
Depreciation and amortization	16,138	13,343	14,148
Non-cash stock-based compensation	4,860	4,476	3,146
Non-cash gain from associated company	(6,006)	0	0
Amortization of debt issuance costs	852	2,654	2,628
Loss (gain) on early retirement of debt	5,662	1,368	(189)
Accrued interest not paid in cash	93	1,333	2,358
Deferred income taxes	23,001	11,014	(105,669)
Gain from asset dispositions	(63)	(145)	(50)
Asset impairment charge	0	0	700
Non-cash loss (gain) from derivatives	1,051	(2,389)	(1,465)
Reclassification of net cash settlements on precious metal contracts to investing activities	(2,346)	(193)	1,047
Net cash provided by (used in) operating activities	1,554	7,429	(2,677)
Non-cash gain on disposal of assets	(27,573)	(21)	(6,041)
Change in operating assets and liabilities, net of acquisitions:
Trade and other receivables	2,177	7,573	(7,621)
Inventories	1,920	(421)	(170)
Prepaid and other current assets	(3,371)	1,006	(443)
Other current liabilities	(9,544)	(14,417)	(14,876)
Other items, net	(1,271)	(652)	(2,047)
Net cash provided by operating activities	49,163	58,439	21,554
Cash flows from investing activities:
Additions to property, plant and equipment	(16,226)	(20,295)	(12,046)
Net cash settlements on precious metal contracts	2,346	193	(1,047)
Acquisitions, net of cash acquired	(68,640)	(12,434)	(8,508)
Proceeds from sales of assets	413	2,257	186
Investments in associated company	0	(6,321)	(18,021)
Proceeds from sale of discontinued operations	45,334	0	26,532
Net cash used in investing activities of discontinued operations	(102)	(1,282)	(1,380)
Net cash used in investing activities	(36,875)	(37,882)	(14,284)
Cash flows from financing activities:
Proceeds from term loans - domestic	10,000	116,838	50,000
Net revolver borrowings (repayments)	30,950	(23,849)	(18,785)
Net (repayments) borrowings on loans - foreign	(3,517)	1,547	(707)
Repayments of term loans	(9,318)	(91,374)	(4,452)
Repurchases of Subordinated Notes	(36,307)	(10,847)	(35,074)
Deferred finance charges	(771)	(2,743)	(1,469)
Net change in overdrafts	1,761	(1,365)	95
Purchases of treasury stock	(9,796)	0	0
Other financing activities	(424)	(437)	1,200
Net cash used in financing activities	(17,422)	(12,230)	(9,192)
Net change for the year	(5,134)	8,327	(1,922)
Effect of exchange rate changes on cash and cash equivalents	133	133	1
Cash and cash equivalents at beginning of year	15,301	6,841	8,762
Cash and cash equivalents at end of year	10,300	15,301	6,841
Cash paid during the year for:
Interest	8,704	11,272	11,159
Taxes	7,519	4,191	4,344
Non-cash financing activities:
Sale of property for mortgage note receivable	$ 0	$ 842	$ 0