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Acquisitions Acquisitions - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended | 10 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Oct. 16, 2014 | Dec. 31, 2015 | Dec. 31, 2014 | Jun. 30, 2014 | Dec. 31, 2013 | Sep. 30, 2013 | Dec. 31, 2012 | Oct. 17, 2014
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses, Net of Cash Acquired |  |  |  |  |  |  |  |  |  |  | $ 10,000 | $ 382,880 |  | $ 84,790 |  |  |
Net sales |  | $ 192,760 | $ 222,190 | $ 224,900 | $ 224,130 | $ 223,430 | $ 222,330 | $ 224,710 | $ 216,830 |  | 863,980 | $ 887,300 |  | 799,700 |  |  |
Business Acquisition, Lion Holdings [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses, Net of Cash Acquired |  |  |  |  |  |  | $ 27,500 |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  |  |  |  | $ 10,000 |  |  |  |
Series of Individually Immaterial Business Acquisitions [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses, Net of Cash Acquired |  |  |  |  |  |  |  |  |  |  | $ 10,000 |  |  | $ 84,790 |  |  |
Business Acquisition, Percentage of Voting Interests Acquired |  |  |  |  |  |  |  |  |  |  |  |  |  | 100.00% |  |  |
Business Acquisition, Deferred Purchase Price |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 2,600 |  |  |
Business Acquisition, Deferred Purchase Price and Contingent Consideration | [1] |  |  |  |  |  |  |  |  |  |  |  |  | $ 4,280 |  |  |
Allfast Fasteners [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses, Net of Cash Acquired |  |  |  |  |  |  |  |  |  | $ 351,220 |  |  |  |  |  |  |
Business Acquisition, Percentage of Voting Interests Acquired |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 100.00%
Business Acquisition, Deferred Purchase Price | [2] |  |  |  |  |  |  |  |  | $ 15,730 |  |  |  |  |  |  |
Business Acquisition, Martinic [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 13,000 |
Business Acquisition, Wulfrun [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 10,000 |
Business Acquisition, Mac Fasteners [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 17,000 |  |
[1] | Deferred/contingent consideration included approximately $2.6 million of both short-term and long-term deferred purchase price, based on set amounts and fixed payment schedules per the purchase agreement, and an additional $1.7 million of contingent consideration to be paid, if earned, based on a multiple of future earnings, as defined.
[2] | Of the deferred purchase price, approximately $8.7 million, represents the Company's best estimate of the underlying obligations for certain tax amounts the Company has agreed to reimburse the previous owner in order to acquire additional tax attributes. During 2015, the Company paid $5.2 million of such amount and the remaining $3.5 million liability was removed, with a corresponding reduction to goodwill, due to the finalization of the Seller's tax liability. In addition, deferred purchase price includes approximately $7.0 million of other liabilities which the Company has agreed to pay on behalf of the previous owner, of which approximately $4.9 million was paid through December 31, 2015.

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