Increase in sub-limit for foreign subsidiary borrowings

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Amount of permitted loans and investments in foreign subsidiaries.

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Increase in maximum borrowing capacity of credit facility

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Increase in permitted loans and investments in foreign subsidiaries.

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Length of the amended extension to the expiration date on debt

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Line of Credit Facility amendment date

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Maximum Leverage Ratio

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Minimum interest coverage ratio

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No definition available.

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States whether the entity was in compliance with the debt covenants throughout the reporting period, and describes facts and circumstances of any compliance failure.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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The maximum amount of borrowing capacity under a line of credit that is available as of the balance sheet date for a specific purpose other than for financing goods acquired for inventory or imminent delivery to a customer.

+ References

No definition available.

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The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

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No definition available.

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Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

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Date the credit facility terminates, in CCYY-MM-DD format.

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Fair value of the amount outstanding under the credit facility.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Weighted average interest rate of long-term debt outstanding calculated at point in time.

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No definition available.

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Weighted average interest rate of short-term debt outstanding calculated at point in time.

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Debt (Narrative) (Details) kr in Thousands, $ in Thousands	3 Months Ended	5 Months Ended	12 Months Ended
Debt (Narrative) (Details) kr in Thousands, $ in Thousands	Jun. 30, 2014 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2018 SEK (kr)	Dec. 31, 2018 USD ($)	Oct. 26, 2018 USD ($)	Sep. 11, 2018 USD ($)	Dec. 31, 2017 USD ($)	Jan. 30, 2017 USD ($)	Aug. 12, 2016 USD ($)	Sep. 12, 2014 USD ($)	Nov. 02, 2007 USD ($)
Debt Instrument [Line Items]
Capitalized deferred financing costs								$ 61	$ 399
Notes covenant compliance			The Company was in compliance with all Credit Facility and debt covenants at December 31, 2018 and 2017.
Borrowings outstanding				$ 96,000			$ 121,000
Outstanding letters of credit				1,815			2,008
Total long-term debt, net				983			3,852
Less: current portion				1,533			4,192
2019				1,533
2020				513
2021				96,470
Senior Notes [Member]
Debt Instrument [Line Items]
Debt interest rate	9.50%
Loss on early extinguishment of debt	$ (10,507)
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity										$ 300,000	$ 100,000
Increase in maximum borrowing capacity of credit facility										$ 80,000
Credit facility, borrowing capacity											$ 100,000
Borrowings outstanding				$ 96,000			121,000
Credit facility, capacity restrictions of investment activities						$ 10,000
Amount of permitted loans and investments in foreign subsidiaries					$ 50,000
Maximum leverage ratio			300.00%	300.00%
Minimum interest coverage ratio			350.00%	350.00%
Revolving Credit Facility [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Credit facility, commitment fee percentage			0.35%
Revolving Credit Facility [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Credit facility, commitment fee percentage			0.20%
Line of Credit [Member]
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity			kr 20,000	$ 2,259			2,439
Line of credit				$ 0			$ 0
Amendment Three [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit facility amendment date		Aug. 12, 2016
Length of the amended extension to the expiration date on debt		2 years
Line of credit expiration date		Sep. 12, 2021
PST Eletronica Ltda [Member]
Debt Instrument [Line Items]
Short-term debt, weighted average interest rate			10.45%	10.45%
Long-term debt, weighted average interest rate							8.00%
PST Eletronica Ltda [Member] \| Term Loan [Member]
Debt Instrument [Line Items]
2019				$ 1,533
2020				513
2021				$ 470
Borrowing Sub-Limit for the Company's Foreign Subsidiaries [Member] \| Amendment Three [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Credit facility, capacity restrictions of investment activities		$ 80,000
Increase in sub-limit for foreign subsidiary borrowings		30,000
Permitted Loans and Investments in Foreign Subsidiaries [Member] \| Amendment Three [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Increase in permitted loans and investments in foreign subsidiaries		5,000
Amount of permitted loans and investments in foreign subsidiaries		$ 30,000