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Valuation and Qualifying Accounts (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
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Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Allowance for doubtful accounts [Member] |  |  |  |  |  |
Valuation allowances and reserves [Roll Forward] |  |  |  |  |  |
Balance at Beginning of Period | $ 1,166 |  | $ 789 |  | $ 723 |
Reserves Assumed in Acquisition | 496 |  | 383 |  | 171 |
Additions Charged to Earnings | 1,037 |  | 204 |  | (7) |
Charges to Reserve, Net | (41) | [1] | (210) | [1] | (98) | [1]
Balance at End of Year | 2,658 |  | 1,166 |  | 789 |
Reserves for inventory [Member] |  |  |  |  |  |
Valuation allowances and reserves [Roll Forward] |  |  |  |  |  |
Balance at Beginning of Period | 6,999 |  | 4,717 |  | 4,059 |
Reserves Assumed in Acquisition | 1,131 |  | 1,694 |  | 657 |
Additions Charged to Earnings | 72 |  | 1,785 |  | 1,092 |
Charges to Reserve, Net | (1,644) | [1] | (1,197) | [1] | (1,091) | [1]
Balance at End of Year | 6,558 |  | 6,999 |  | 4,717 |
Valuation of deferred tax assets [Member] |  |  |  |  |  |
Valuation allowances and reserves [Roll Forward] |  |  |  |  |  |
Balance at Beginning of Period | 806 |  | 0 |  | 271,393 |
Reserves Assumed in Acquisition | (120) |  | 827 |  | 0 |
Additions Charged to Earnings | 335 |  | (21) |  | (271,393) |
Charges to Reserve, Net | 0 | [1] | 0 | [1] | 0 | [1]
Balance at End of Year | $ 1,021 |  | $ 806 |  | $ 0 |
[1] | Deductions from the allowance for doubtful accounts equal accounts receivable written off, less recoveries, against the allowance. Deductions from the reserves for inventory excess and obsolete items equal inventory written off against the reserve as items were disposed of.

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- Definition Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 09 -Article 12 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e24092-122690 + Details
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- Definition Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, charged to costs and expenses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 09 -Article 12 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e24092-122690 + Details
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- Definition Total increases or decreases in allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e24092-122690 + Details
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- Definition Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, acquired in a business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 09 -Article 12 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e24092-122690 + Details
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