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Acquisitions - Summary of Estimated Fair Value of Assets Acquired and Liabilities Assumed (Detail) - USD ($) $ in Thousands |  | 6 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Mar. 17, 2015 | Jun. 30, 2015 | Jun. 30, 2014 | Dec. 31, 2014 | May. 30, 2014 | Dec. 31, 2013
Business Acquisition [Line Items] |  |  |  |  |  |
Goodwill |  | $ 200,212 |  | $ 192,381 |  | $ 150,909
Total purchase price, net of cash acquired |  | 9,910 | $ 86,950 |  |  |
Precisive, LLC [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Current assets | $ 693 |  |  |  |  |
Non-current assets | 18 |  |  |  |  |
Intangible assets | 5,110 |  |  |  |  |
Goodwill | 7,042 | $ 7,042 |  |  |  |
Total assets acquired | 12,863 |  |  |  |  |
Total current liabilities assumed | (343) |  |  |  |  |
Total purchase price | 12,520 |  |  |  |  |
Less: cash acquired | (435) |  |  |  |  |
Total purchase price, net of cash acquired | $ 12,085 |  |  |  |  |
Granville-Phillips [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Inventory |  |  |  |  | $ 5,198 |
Property and equipment |  |  |  |  | 299 |
Other assets |  |  |  |  | 191 |
Intangible assets |  |  |  |  | 38,850 |
Goodwill |  |  | $ 41,612 |  | 42,587 |
Warranty liability |  |  |  |  | (175) |
Total purchase price |  |  |  |  | $ 86,950 |

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- Definition Amount of assets 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=56956791&loc=d3e4845-128472 + Details
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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions, acquired at the acquisition date. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + 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=56956791&loc=d3e4845-128472 + Details
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- Definition Amount of assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer, 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=56956791&loc=d3e4845-128472 + Details
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