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Income Taxes - Additional Information (Detail) | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | ---
Jun. 30, 2016 USD ($) | Jun. 30, 2015 | Jun. 30, 2016 USD ($) | Jun. 30, 2015 | Apr. 01, 2016 EUR (€) | Dec. 31, 2015 USD ($)
Income Taxes [Line Items] |  |  |  |  |  |
Effective tax rate | 27.90% | 17.00% | 30.50% | 23.50% |  |
U.S. statutory tax rate | 34.00% | 34.00% | 34.00% | 34.00% |  |
Atoll GmbH |  |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |  |
Business combination, intangible assets | € |  |  |  |  | € 6,640,000 |
Deferred tax liabilities, intangible assets | $ 2,190,000 |  | $ 2,190,000 |  | 1,972,000 |
Deferred tax assets, net operating losses | € |  |  |  |  | 2,669,000 |
Deferred tax assets, intangible assets | $ 880,000 |  | $ 880,000 |  | € 793,000 |
Latest Tax Year |  |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |  |
Net operating loss and business tax credit carry forwards expiration date |  |  | At various dates through December 2035. |  |  |
Available to Reduce Future Federal Income Taxes |  |  |  |  |  |
Income Taxes [Line Items] |  |  |  |  |  |
Net operating loss carry forwards | $ |  |  |  |  |  | $ 46,984,000
Business tax credit carry forwards | $ |  |  |  |  |  | $ 1,920,000

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- Definition Amount of intangible assets, excluding goodwill, acquired at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=73530397&loc=d3e4845-128472 + Details
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 20 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=68052875&loc=d3e28680-109314 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32621-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32632-109319 + Details
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- Definition Amount of deferred tax liability attributable to taxable temporary differences from intangible assets other than goodwill. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32632-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=68052875&loc=d3e28680-109314 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32621-109319 + Details
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