CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Current assets:
Cash	$ 2,409	$ 47
Trade accounts receivable, net of allowance for doubtful accounts of $9,102 in 2015 and $8,713 in 2014	212,017us-gaap_AccountsReceivableNetCurrent	239,236us-gaap_AccountsReceivableNetCurrent
Inventories, net	112,659us-gaap_InventoryNet	115,658us-gaap_InventoryNet
Costs and estimated profits in excess of billings on uncompleted contracts	23,253	20,083
Prepaid expenses and other current assets	5,075	3,004
Deferred income taxes	7,908us-gaap_DeferredTaxAssetsNetCurrent	8,250us-gaap_DeferredTaxAssetsNetCurrent
Total current assets	363,321us-gaap_AssetsCurrent	386,278us-gaap_AssetsCurrent
Property and equipment, net	68,985us-gaap_PropertyPlantAndEquipmentNet	69,979us-gaap_PropertyPlantAndEquipmentNet
Goodwill	253,312us-gaap_Goodwill	253,312us-gaap_Goodwill
Other intangible assets, net of accumulated amortization of $73,657 in 2015 and $66,412 in 2014	123,088us-gaap_OtherIntangibleAssetsNet	130,333us-gaap_OtherIntangibleAssetsNet
Other long-term assets	1,736us-gaap_OtherAssetsNoncurrent	1,730us-gaap_OtherAssetsNoncurrent
Total assets	810,442us-gaap_Assets	841,632us-gaap_Assets
Current liabilities:
Current maturities of long-term debt	41,603us-gaap_LongTermDebtCurrent	38,608us-gaap_LongTermDebtCurrent
Trade accounts payable	93,730us-gaap_AccountsPayableTradeCurrent	100,774us-gaap_AccountsPayableTradeCurrent
Accrued wages and benefits	24,757	26,967
Federal income taxes payable	4,081us-gaap_TaxesPayableCurrent	8,130us-gaap_TaxesPayableCurrent
Customer advances	4,207us-gaap_CustomerAdvancesCurrent	4,262us-gaap_CustomerAdvancesCurrent
Billings in excess of costs and profits on uncompleted contracts	7,075us-gaap_BillingsInExcessOfCostCurrent	8,840us-gaap_BillingsInExcessOfCostCurrent
Other current liabilities	15,457us-gaap_OtherLiabilitiesCurrent	19,621us-gaap_OtherLiabilitiesCurrent
Total current liabilities	190,910us-gaap_LiabilitiesCurrent	207,202us-gaap_LiabilitiesCurrent
Long-term debt, less current maturities	363,222	372,908
Less unamortized debt issuance costs	(2,425)	(2,714)
Long-term debt less unamortized debt issuance costs	360,797	370,194
Non-current deferred income taxes	17,736	21,284
Commitments and Contingencies (Note 14)
Shareholders' equity:
Common stock, $0.01 par value, 100,000,000 shares authorized; 14,698,171 in 2015 and 14,655,356 in 2014 shares issued	146us-gaap_CommonStockValue	146us-gaap_CommonStockValue
Additional paid-in capital	115,972us-gaap_AdditionalPaidInCapital	115,605us-gaap_AdditionalPaidInCapital
Retained earnings	158,037	148,409
Accumulated other comprehensive loss	(8,740)	(5,700)
Treasury stock, at cost (471,615 shares in 2015 and 280,195 in 2014)	(24,432)us-gaap_TreasuryStockValue	(15,524)us-gaap_TreasuryStockValue
Total shareholders' equity	240,999us-gaap_StockholdersEquity	242,952us-gaap_StockholdersEquity
Total liabilities and stockholders' equity	810,442	841,632
Series A Preferred Stock [Member]
Shareholders' equity:
Preferred stock	1	1
Series B Convertible Preferred Stock [Member]
Shareholders' equity:
Preferred stock	$ 15	$ 15

Carrying amount of long-term debt, including unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

No definition available.