Condensed Consolidated Statement Of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Operating Activities
Net loss	$ (7,254)us-gaap_NetIncomeLoss	$ (17,976)us-gaap_NetIncomeLoss
Adjustments to reconcile net earnings to net cash provided by operating activities:
Gain on sale of businesses	(260)us-gaap_GainLossOnSaleOfBusiness	0us-gaap_GainLossOnSaleOfBusiness
Depreciation and amortization	5,353	9,507
Provision for losses on trade and installment receivables	272us-gaap_ProvisionForDoubtfulAccounts	663us-gaap_ProvisionForDoubtfulAccounts
Provision for deferred income taxes	110us-gaap_DeferredIncomeTaxExpenseBenefit	286us-gaap_DeferredIncomeTaxExpenseBenefit
Provision for other deferred liabilities	82us-gaap_OtherNoncashExpense	141us-gaap_OtherNoncashExpense
Provision for stock-based compensation	411us-gaap_ShareBasedCompensation	699us-gaap_ShareBasedCompensation
Loss on disposals of property and equipment	(11)	83
Loss on debt extinguishment including debt finance charges and associated fees	668	0
Asset write-downs related to intangible assets	0us-gaap_AssetImpairmentCharges	638us-gaap_AssetImpairmentCharges
Amortization of convertible debt discount	191	170
Changes in operating assets and liabilities:
Trade receivables	(9,756)	2,811
Installment sales contracts, net	(402)	(652)
Inventories	(2,066)us-gaap_IncreaseDecreaseInInventories	(8,493)us-gaap_IncreaseDecreaseInInventories
Other current assets	293	2,251
Accounts payable	3,408	6,745
Accrued expenses	(14,179)	(3,148)
Other long-term liabilities	349	(745)
Net Cash Used by Operating Activities	(22,791)	(7,020)
Investing Activities
Purchases of property and equipment	(2,818)	(3,626)
Proceeds from sale of property and equipment	78	1
Change in other long-term assets	13,392	(197)
Other	(3)	(144)
Net Cash Provided (Used) by Investing Activities	10,649	(3,966)
Financing Activities
Proceeds from revolving lines of credit and long-term borrowings	71,064	62,525
Payments on revolving lines of credit and long-term borrowings	(73,633)us-gaap_RepaymentsOfLongTermDebt	(60,195)us-gaap_RepaymentsOfLongTermDebt
Proceeds from exercise of stock options	200	85
Payment of financing costs	(1,391)us-gaap_PaymentsOfFinancingCosts	0us-gaap_PaymentsOfFinancingCosts
Payment of dividends	(397)us-gaap_PaymentsOfDividendsCommonStock	(396)us-gaap_PaymentsOfDividendsCommonStock
Net Cash Provided (Used) by Financing Activities	(4,157)	2,019
Effect of exchange rate changes on cash	(2,014)	442
Decrease in cash and cash equivalents	(18,313)	(8,525)
Cash and cash equivalents at beginning of year	38,931	29,785
Cash and cash equivalents at end of period	$ 20,618	$ 21,260

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Amount of expense related to write-down of receivables to the amount expected to be collected. Includes, but is not limited to, accounts receivable and notes receivable.

+ References

+ Details

Name:	us-gaap_ProvisionForDoubtfulAccounts
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 15

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

-URI http://asc.fasb.org/extlink&oid=6513228

+ Details

Name:	us-gaap_RepaymentsOfLongTermDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

+ References

+ Details

Name:	us-gaap_ShareBasedCompensation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration