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Increase in maximum borrowing capacity of credit facility

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Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the sixth fiscal year following the latest fiscal year.

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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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For an unclassified balance sheet, the amount as of the balance sheet date of capitalized costs associated with the issuance of debt instruments (for example, legal, accounting, underwriting, printing, and registration costs) that will be charged against earnings over the life of the debt instruments to which such costs pertain. Such amount is before the consideration of accumulated amortization.

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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.

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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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Identification of whether the entity has been in compliance with any credit facility debt covenants during the period.

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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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The carrying value as of the balance sheet date of the current portion 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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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 fifth 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 fourth 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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Weighted average interest rate of long-term debt outstanding.

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Weighted average interest rate of short-term debt outstanding.

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Debt (Narrative) (Details) SEK in Thousands, $ in Thousands	2 Months Ended	3 Months Ended	9 Months Ended
Debt (Narrative) (Details) SEK in Thousands, $ in Thousands	Sep. 30, 2016 USD ($)	Sep. 30, 2016 SEK	Sep. 30, 2016 SEK	Sep. 30, 2016 USD ($)	Dec. 31, 2015 USD ($)	Sep. 12, 2014 USD ($)	Oct. 04, 2010	Nov. 02, 2007 USD ($)
Debt Instrument [Line Items]
Borrowings outstanding				$ 87,000	$ 100,000
Senior Notes [Member]
Debt Instrument [Line Items]
Debt interest rate							9.50%
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Capitalized deferred financing costs				$ 339
Debt interest rate		1.80%	1.80%	1.80%
Line of credit facility, maximum borrowing capacity						$ 300,000		$ 100,000
Increase in maximum borrowing capacity of credit facility						$ 80,000
Borrowings outstanding				$ 87,000	100,000
Line of credit expiration date			Sep. 12, 2019
Maximum leverage ratio		300.00%	300.00%	300.00%
Minimum interest coverage ratio		350.00%	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%
Term Loan [Member]
Debt Instrument [Line Items]
Line of credit, current				$ 0	0
Credit Facility [Member]
Debt Instrument [Line Items]
Credit Facility covenant compliance			The Company was in compliance with all Credit Facility covenants at September 30, 2016 and December 31, 2015
Amendment Three [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of credit facilty amendement 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 Debt [Member]
Debt Instrument [Line Items]
Notes covenant compliance			PST was in compliance with all debt covenants at September 30, 2016 and December 31, 2015.
PST Eletronica Ltda [Member]
Debt Instrument [Line Items]
Long-term debt, weighted average interest rate		13.20%	13.20%	13.20%
Short-term debt, weighted average interest rate		11.10%	11.10%	11.10%
PST Eletronica Ltda [Member] \| Term Loan [Member]
Debt Instrument [Line Items]
October 2016 through September 2017				$ 9,710
October 2017 to December 2017				963
2018				3,972
2019				2,566
2020				398
2021				365
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 foregin subsidiaries.	$ 5,000
Amount of permitted loans and investments in foregin subsidiaries				30,000
Electronics [Member] \| Line of Credit [Member]
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity		SEK 20,000	SEK 20,000	$ 2,333	$ 2,369