Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Cash flows from operating activities:
Net earnings (loss)	$ 6,954	$ 26,522	$ (3,929)
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	16,254	16,971	21,169
Equity-based compensation	3,195	2,660	4,219
Restructuring, impairment, and restructuring-related charges	6,915	5,941	11,899
Restructuring loss on pension settlement	8,280	0	0
Amortization of retirement benefit adjustments	2,544	5,722	8,138
Non-recurring environmental expense	14,541	0	0
Deferred income taxes	(8,920)	4,900	12,568
Loss on sale of EMS business	0	0	1,229
Gain on sale of assets	(2,156)	(1,915)	(1,657)
Changes in assets and liabilities, net of acquisitions and divestitures:
Accounts receivable	1,036	4,356	(6,075)
Inventories	2,225	3,437	(2,511)
Other assets	4,090	(5,672)	931
Accounts payable	(5,126)	(2,692)	4,716
Accrued expenses	(9,270)	(18,922)	733
Income taxes payable	5,264	262	(15)
Other liabilities	2,502	721	(232)
Pension and other post-retirement plans	(4,700)	(8,426)	(14,076)
Total adjustments	31,670	5,901	41,500
Net cash provided by operating activities	38,624	32,423	37,571
Cash flows from investing activities:
Capital expenditures	(9,723)	(12,949)	(13,982)
Proceeds from sale of assets	1,878	4,951	1,768
Proceeds from sale of EMS business	0	0	75,000
Payment for acquisitions, net of cash acquired	(1,285)	0	0
Net cash (used in) provided by investing activities	(9,130)	(7,998)	62,786
Cash flows from financing activities:
Payments of long-term debt	(1,343,500)	(1,030,200)	(3,864,500)
Proceeds from borrowings of long-term debt	1,359,200	1,030,200	3,786,000
Payments of short-term notes payable	(164)	(810)	(2,218)
Proceeds from borrowings of short-term notes payable	164	810	2,218
Purchase of treasury stock	(18,088)	(8,002)	(6,208)
Dividends paid	(5,291)	(5,374)	(4,874)
Exercise of stock options	64	1,204	2,722
Excess tax benefit on equity-based compensation	313	297	117
Other	0	(3,132)	177
Net cash used in financing activities	(7,302)	(15,007)	(86,566)
Effect of exchange rate on cash and cash equivalents	228	722	1,006
Net increase in cash and cash equivalents	22,420	10,140	14,797
Cash and cash equivalents at beginning of year	134,508	124,368	109,571
Cash and cash equivalents at end of year	156,928	134,508	124,368
Supplemental cash flow information:
Cash paid for interest	2,415	2,113	3,104
Cash paid for income taxes, net	$ 6,779	$ 7,994	$ 6,431