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Summary of Significant Accounting Policies (Details Textual) (USD $)
In Thousands, except Share data, unless otherwise specified
 1 Months Ended 3 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended 12 Months Ended
Jan. 31, 2012
Dec. 31, 2012
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2011
Sep. 30, 2011
Jun. 30, 2011
Mar. 31, 2011
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Jan. 05, 2012
Dec. 31, 2012
Product Warranty and Recall [Member]
Dec. 31, 2011
Product Warranty and Recall [Member]
Dec. 31, 2012
Noncontrolling Interest [Member]
Dec. 31, 2011
Noncontrolling Interest [Member]
Dec. 31, 2010
Noncontrolling Interest [Member]
Dec. 31, 2011
Electronics [Member]
Dec. 31, 2012
Electronics [Member]
Dec. 31, 2010
Electronics [Member]
Oct. 04, 2010
Senior Notes [Member]
Dec. 31, 2012
Stock Option [Member]
Dec. 31, 2011
Stock Option [Member]
Dec. 31, 2010
Stock Option [Member]
Dec. 31, 2012
Long Term Cash Incentive Plan [Member]
Dec. 31, 2011
Long Term Cash Incentive Plan [Member]
Dec. 31, 2012
Restricted Stock [Member]
Dec. 31, 2011
Restricted Stock [Member]
Dec. 31, 2010
Restricted Stock [Member]
Dec. 31, 2011
Customer Lists [Member]
Dec. 31, 2012
Customer Lists [Member]
Dec. 31, 2011
Trademarks [Member]
Dec. 31, 2012
Trademarks [Member]
Dec. 31, 2011
Developed Technology Rights [Member]
Dec. 31, 2012
Pst Eletronica Ltda [Member]
Dec. 31, 2011
Pst Eletronica Ltda [Member]
Jan. 05, 2012
Pst Eletronica Ltda [Member]
Dec. 31, 2010
Pst Eletronica Ltda [Member]
Dec. 31, 2012
Pst Eletronica Ltda [Member]
Noncontrolling Interest [Member]
Dec. 31, 2011
Pst Eletronica Ltda [Member]
Noncontrolling Interest [Member]
Dec. 31, 2011
Bcs Acquiisition [Member]
Dec. 31, 2012
Bcs Acquiisition [Member]
Dec. 31, 2009
Bcs Acquiisition [Member]
Oct. 13, 2009
Bcs Acquiisition [Member]
Dec. 31, 2012
Maximum [Member]
Dec. 31, 2012
Minimum [Member]
Percentage Of Ownership In Jointventure                                                                                           50.00% 20.00%
Preproduction Costs Related To Long-Term Supply Arrangements, Costs Capitalized   $ 8,631       $ 10,381       $ 8,631 $ 10,381                                                                        
Depreciation                   28,519 18,847 19,070                                                                      
Asset Impairment Charges                   0 807 0                                                                      
Equity Method Investment, Ownership Percentage                                                                       74.00% 74.00%   50.00%                
Noncontrolling Interest, Ownership Percentage by Parent                                                                       74.00% 74.00%               51.00%    
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares 1,293,609                 1,940,413                                                                          
Business Acquisition, Cost Of Acquired Entity, Cash Paid                         19,779                                                       29,669            
Business Acquisition, Cost Of Acquired Entity, Equity Interests Issued and Issuable                         10,197                                                       15,310            
Business Combination, Consideration Transferred                                                                           29,976     44,979            
Business Acquisition, Percentage of Voting Interests Acquired   24.00%               24.00%                                                     24.00%           49.00%        
Business Acquisition, Cost of Acquired Entity, Purchase Price                                                                         44,979               5,967    
Business Combination, Step Acquisition, Equity Interest In Acquiree, Fair Value                                                                         104,118       104,118            
Gain Recognized On Previously Held Equity Interest                                                                         65,372                    
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners                                                                                 26.00%            
Acquired Finite-Lived Intangible Asset, Amount           97,398         97,398                                       47,126   31,400   18,872                        
Acquired Finite Lived Intangible Assets Weighted Average Useful Life                                                             15 years   20 years   17 years                        
Business Acquisition Estimated Future Payments Prior Owners Increase Decrease                   0                                                                          
Goodwill impairment charge                   0 4,945 0             0                                             4,945          
Acquisition of business                     67,118               0                                           67,118            
Goodwill   66,381       71,855       66,381 71,855 9,696             564 598 578                                         4,173          
Intangible assets, net   84,397       98,039       84,397 98,039                                       47,646 40,807 31,513 27,382                          
Amortization                   5,940 238 215                                                                      
Finite Lived Intangible Assets, Amortization Expense, One Through Five Years   5,900               5,900                                                                          
Finite-Lived Intangible Assets, Remaining Amortization Period                                                                                           2018 2013
Deferred Tax Assets, Valuation Allowance   71,790       78,211       71,790 78,211                                                                        
Research and Development Expense                   44,798 35,263 37,563                                                                      
Research and Development Expense Percentage                   4.80% 4.60% 5.90%                                                                      
Share-based compensation expense                   4,890 4,423 2,661                           47 375                                        
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount                                             59,000 50,000 106,750                                            
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price   $ 12.20       $ 12.76       $ 12.20 $ 12.76                       $ 12.20 $ 15.73 $ 12.96                                            
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number                                                       635,850 419,100 445,950                                  
Debt Instrument, Unamortized Discount, Percentage                                           2.50% 2.50%                                                
Debt Instrument, Interest Rate, Effective Percentage   10.00%               10.00%                         10.00%                                                
Amortization of Financing Costs                   862 875 914                                                                      
Deferred Finance Costs, Net   1,564       1,914       1,564 1,914                                                                        
Fair value of noncontrolling interest                                                                               44,076 48,727            
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net Of Tax                   (10,502) (5,971) (1,994)       (3,918) 0 0                                           3,918              
Net Income (Loss) Attributable To Noncontrolling Interest   90 170 (1,740) (133) (3,209) (272) (124) (215) (1,613) (3,820) (184)                                                       733              
Goodwill, Period Increase (Decrease)                                                                       3,047                      
Other Liabilities, Noncurrent   4,258       5,494       4,258 5,494     494 175                                                                
Equity Method Investments                                                                         38,746                    
Business Acquisition, Purchase Price Allocation, Goodwill Amount                                                                                       9,199      
FIFO Inventory Amount   57,004       64,441       57,004 64,441                                                                        
Weighted Average Cost Inventory Amount   39,028       56,041       39,028 56,041                                                                        
Foreign Currency Transaction Gain (Loss), before Tax                   $ 4,275 $ 106 $ 974