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Income Taxes (Narrative) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Income Taxes [Line Items] |  |  |
Statutory tax rate, percentage | 35.00% | 35.00% | 35.00%
Net current deferred tax assets |  | $ 10,014 |
Undistributed earnings of foreign subsidiaries | $ 28,830 |  |
Cash held in foreign operations | 29,261 |  |
Deferred tax assets, net of operating losses | 2,571 |  |
Deferred tax assets, net of operating losses | $ 30,383 |  |
Minimum |  |  |
Income Taxes [Line Items] |  |  |
Statute of limitations expiration period, in years | 4 years |  |
Net operating loss carry forwards, expiration years | Dec. 31, 2016 |  |
Minimum | Germany |  |  |
Income Taxes [Line Items] |  |  |
Tax examination, years | 2009 |  |
Maximum |  |  |
Income Taxes [Line Items] |  |  |
Statute of limitations expiration period, in years | 10 years |  |
Net operating loss carry forwards, expiration years | Dec. 31, 2025 |  |
Maximum | Germany |  |  |
Income Taxes [Line Items] |  |  |
Tax examination, years | 2012 |  |

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- Definition Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards expected to be realized or consumed within one year or operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=37586315&loc=d3e31917-109318 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=37586315&loc=d3e31931-109318 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=37586315&loc=d3e31928-109318 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=37586315&loc=d3e31958-109318 + Details
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