Note 8 - Debt And Capital Leases (Details Textual)						1 Months Ended	12 Months Ended
		Oct. 02, 2017 USD ($)	Nov. 15, 2016 USD ($)	Jul. 07, 2016 USD ($)	Sep. 03, 2013 USD ($)	Mar. 31, 2018 Subsidiary	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Sep. 14, 2016 USD ($)	Jun. 30, 2015	Dec. 31, 2014
Debt And Capital Leases [Line Items]
Percentage of Stock of Material Domestic Subsidiaries Securing Credit Agreement									100.00%
Percentage of Stock of Material First Tier Foreign Subsidiaries Securing Credit Agreement									65.00%
Term Collateral, Carrying Value							$ 1,385,000,000	$ 1,613,000,000
ABL Collateral, Carrying Value							1,385,000,000	1,613,000,000
Term Credit Agreements, U.S. Liquidity, Threshold Below which No Prepayment is Required							100,000,000
Term Credit Agreements, Prepayments Required in Next Fiscal Year								0
Term Credit Agreements, First Lien Term Credit Agreement, Maximum Secured Leverage Ratio									2.75		3.25	3.75
Aggregate sales of designated subsidiaries	[1]						1,531,000,000	1,643,000,000	$ 1,803,000,000
Aggregate assets of designated subsidiaries							$ 1,707,000,000	1,776,000,000
Percentage of aggregate sales of unrestricted subsidiaries to consolidated sales of entity							0.00%
Percentage of aggregate assets of unrestricted subsidiaries to consolidated assets of entity							1.00%
Net secured leverage ratio							2.75%
Fixed charge coverage ratio							1.00%
Loss on early extinguishment of debt								(4,000,000)
Subsequent Event
Debt And Capital Leases [Line Items]
Number of subsidiaries designated as unrestricted subsidiaries | Subsidiary						5
Unrestricted Subsidiaries [Member]
Debt And Capital Leases [Line Items]
Aggregate sales of designated subsidiaries							$ 7,000,000
Aggregate assets of designated subsidiaries							$ 17,000,000
Maximum [Member]
Debt And Capital Leases [Line Items]
Secured leverage ratio							2.25%
Prior Credit Agreement [Member]
Debt And Capital Leases [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity							$ 200,000,000
Prior Credit Agreement [Member] | London Interbank Offered Rate (LIBOR) | Minimum [Member]
Debt And Capital Leases [Line Items]
Debt Instrument, Basis Spread on Variable Rate							2.75%
Prior Credit Agreement [Member] | London Interbank Offered Rate (LIBOR) | Maximum [Member]
Debt And Capital Leases [Line Items]
Debt Instrument, Basis Spread on Variable Rate							3.25%
Prior Credit Agreement [Member] | Base Rate [Member] | Minimum [Member]
Debt And Capital Leases [Line Items]
Debt Instrument, Basis Spread on Variable Rate							1.75%
Prior Credit Agreement [Member] | Base Rate [Member] | Maximum [Member]
Debt And Capital Leases [Line Items]
Debt Instrument, Basis Spread on Variable Rate							2.25%
Amended Credit Agreement [Member]
Debt And Capital Leases [Line Items]
Excess Availability Amount							$ 20,000,000	20,000,000
Line of Credit Facility, Maximum Borrowing Capacity							150,000,000
Long-term Line of Credit							$ 96,000,000
Fixed Charged Coverage Ratio Required							1.00
Excess Availability Below Which the Fixed Charge Coverage Ratio is Triggered							12.50%
Lender Commitments, Threshold Trigger, Excess Availability Amount							$ 18,750,000	18,750,000
Excess Availability Percentage of Lender Commitments Threshold Triggering Cash Dominion Control							12.50%
Amended Credit Agreement [Member] | Restricted Cash [Member]
Debt And Capital Leases [Line Items]
Eligible Cash							$ 6,000,000	$ 25,000,000
Amended Credit Agreement [Member] | Period one [Member]
Debt And Capital Leases [Line Items]
Line of Credit Facility, Expiration Date							May 26, 2021
Amended Credit Agreement [Member] | Period two [Member]
Debt And Capital Leases [Line Items]
Number of days prior to the earliest scheduled maturity date							90 days
Earliest maturity date							Sep. 03, 2019
Amended Credit Agreement [Member] | Minimum [Member]
Debt And Capital Leases [Line Items]
Proforma fixed charge coverage ratio							1.00%
Amended Credit Agreement [Member] | Minimum [Member] | Pro Forma [Member]
Debt And Capital Leases [Line Items]
Excess Availability Amount							$ 30,000,000
Amended Credit Agreement [Member] | Maximum [Member]
Debt And Capital Leases [Line Items]
Percentage of aggregate consolidated sales to qualify Restricted Subsidiaries to be designated as Unrestricted Subsidiaries							7.50%
Percentage of aggregate consolidated assets to qualify Restricted Subsidiaries to be designated as Unrestricted Subsidiaries							7.50%
Amended Credit Facility [Member]
Debt And Capital Leases [Line Items]
Excess Availability, Calculation, Percentage of Eligible Receivables Less a Dilution Reserve							85.00%
Excess Availability, Calculation, Percentage of Net Orderly Liquidation Value							85.00%
Excess Availability, Calculation, Percentage of Eligible Inventory							75.00%
Excess Availability, Net Orderly Liquidation Equipment Amount							$ 15,000,000
Excess Availability, Calculation, Percentage of Eligible Equipment							75.00%
Decrease in excess availability net orderly liquidation equipment amount							$ 1,000,000
Amended Credit Facility [Member] | London Interbank Offered Rate (LIBOR) | Minimum [Member]
Debt And Capital Leases [Line Items]
Debt Instrument, Basis Spread on Variable Rate							2.25%
Amended Credit Facility [Member] | London Interbank Offered Rate (LIBOR) | Maximum [Member]
Debt And Capital Leases [Line Items]
Debt Instrument, Basis Spread on Variable Rate							2.75%
Amended Credit Facility [Member] | Base Rate [Member] | Minimum [Member]
Debt And Capital Leases [Line Items]
Debt Instrument, Basis Spread on Variable Rate							1.25%
Amended Credit Facility [Member] | Base Rate [Member] | Maximum [Member]
Debt And Capital Leases [Line Items]
Debt Instrument, Basis Spread on Variable Rate							1.75%
First Lien Term Loan [Member]
Debt And Capital Leases [Line Items]
Debt Instrument, Basis Spread on Variable Rate									6.25%
LIBOR Floor Percentage									1.00%
Alternate Base Rate									5.25%
Prepayment of principal amount		$ 6,000,000		$ 5,000,000
First installment principal payments				$ 4,000,000
Second Lien Note Holders [Member]
Debt And Capital Leases [Line Items]
Debt Instrument, Basis Spread on Variable Rate									9.50%
LIBOR Floor Percentage									1.25%
Alternate Base Rate									8.50%
Senior Secured Second Lien Term Credit Agreement
Debt And Capital Leases [Line Items]
Note repurchase amount										$ 13,000,000
Term loans price (percentage of par)										98.00%
Loss on early extinguishment of debt			$ 4,000,000
Senior Secured Second Lien Term Credit Agreement | Series A Preferred Stock [Member]
Debt And Capital Leases [Line Items]
Prepayment of principal plus accrued interest amount			263,200,000
Debt instrument, principal amount			$ 262,000,000
Senior Secured Second Lien Term Credit Agreement | Minimum [Member]
Debt And Capital Leases [Line Items]
Term loans price (percentage of par)										97.00%
Senior Secured Second Lien Term Credit Agreement | Maximum [Member]
Debt And Capital Leases [Line Items]
Note repurchase amount										$ 25,000,000
Term loans price (percentage of par)										98.50%
Term Credit Agreement [Member]
Debt And Capital Leases [Line Items]
Debt Instrument, Face Amount					$ 695,000,000
Proceeds from Issuance of Other Long-term Debt					664,000,000
Debt Instrument, Unamortized Discount					15,000,000
Debt Issuance Cost					16,000,000
First Lien Term Loan [Member]
Debt And Capital Leases [Line Items]
Debt Instrument, Face Amount					$ 420,000,000
Debt Instrument, Maturity Date, Description							The loans made under the First Lien Term Credit Agreement become due on the earlier to occur of (i) the maturity date of September 3, 2019 or (ii) the acceleration of such loans following the occurrence of an event of default (as defined in the First Lien Term Credit Agreement).
Debt Instrument, Maturity Date					Sep. 03, 2019
Second Lien Note Holders [Member]
Debt And Capital Leases [Line Items]
Debt Instrument, Face Amount					$ 275,000,000
Debt Instrument, Termination Date					Nov. 15, 2016

[1] Sales are reported in the geographic area in which they originate. No non-U.S. country generated more than 10% of net sales in the years ended December 31, 2017, 2016 and 2015.