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ACQUISITIONS (Details) (USD $) | 3 Months Ended | 9 Months Ended |  | 9 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 0 Months Ended |  | 0 Months Ended |  | 0 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 0 Months Ended |
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Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013 | Dec. 31, 2013 | Sep. 30, 2014 Trademarks [Member] | Sep. 30, 2014 Technology [Member] | Sep. 30, 2014 Customer Relationships [Member] | Mar. 31, 2014 Acquisition Date Fair Values (As adjusted) [Member] | Sep. 30, 2014 Class A [Member] | Sep. 30, 2013 Class A [Member] | Sep. 30, 2014 Class A [Member] | Sep. 30, 2013 Class A [Member] | Sep. 30, 2014 Class B [Member] | Sep. 30, 2013 Class B [Member] | Sep. 30, 2014 Class B [Member] | Sep. 30, 2013 Class B [Member] | Jun. 19, 2014 Power Solutions [Member] | Jun. 19, 2014 Power Solutions [Member] | Jun. 19, 2014 Power Solutions [Member] Measurement Period Adjustments [Member] | Jun. 19, 2014 Power Solutions [Member] Measurement Period Adjustments [Member] | Jun. 19, 2014 Power Solutions [Member] Acquisition Date Fair Values (As adjusted) [Member] | Jun. 19, 2014 Power Solutions [Member] Acquisition Date Fair Values (As adjusted) [Member] | Mar. 29, 2013 TRP [Member] | Mar. 29, 2013 TRP [Member] Acquisition Date Fair Values [Member] | Mar. 29, 2013 TRP [Member] Measurement Period Adjustments [Member] | Aug. 20, 2013 Array [Member] | Aug. 20, 2013 Array [Member] Acquisition Date Fair Values [Member] | Aug. 20, 2013 Array [Member] Measurement Period Adjustments [Member] | Sep. 30, 2014 Acquired Companies [Member] Acquisition Date Fair Values (As adjusted) [Member] | Sep. 30, 2014 2013 Acquired Companies [Member] | Sep. 30, 2013 2013 Acquired Companies [Member] | Sep. 30, 2014 2013 Acquired Companies [Member] | Sep. 30, 2013 2013 Acquired Companies [Member] | Sep. 30, 2014 2014 Acquired Companies [Member] | Sep. 30, 2013 2014 Acquired Companies [Member] | Sep. 30, 2014 2014 Acquired Companies [Member] | Sep. 30, 2013 2014 Acquired Companies [Member] | Sep. 30, 2014 2014 Acquired Companies [Member] Class A [Member] | Sep. 30, 2013 2014 Acquired Companies [Member] Class A [Member] | Sep. 30, 2014 2014 Acquired Companies [Member] Class A [Member] | Sep. 30, 2013 2014 Acquired Companies [Member] Class A [Member] | Sep. 30, 2014 2014 Acquired Companies [Member] Class B [Member] | Sep. 30, 2013 2014 Acquired Companies [Member] Class B [Member] | Sep. 30, 2014 2014 Acquired Companies [Member] Class B [Member] | Sep. 30, 2013 2014 Acquired Companies [Member] Class B [Member] | Aug. 29, 2014 Connectivity Solutions [Member] | Jul. 25, 2014 Connectivity Solutions [Member] | Jul. 25, 2014 Connectivity Solutions [Member]
Acquired assets and liabilities [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payment for acquisitions, net of cash acquired |  |  | $ 206,536,000 | $ 30,931,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 110,000,000 |  |  |  |  |  | $ 21,000,000 |  |  | $ 10,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 9,000,000 | $ 90,700,000 |  |  |
Acquisition-related costs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 100,000 | 100,000 | 100,000 | 800,000 | 3,800,000 |  | 5,300,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentages of owned joint venture investment (in hundredths) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 49.00% |  | 49.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues | 156,341,000 | 101,164,000 | 338,426,000 | 258,173,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 20,700,000 | 26,400,000 | 58,300,000 | 48,600,000 | 63,100,000 |  | 70,300,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net earnings (loss) | 1,507,000 | 7,380,000 | 7,075,000 | 8,511,000 |  |  |  |  |  | 255,000 | 1,340,000 | 1,238,000 | 1,528,000 | 1,252,000 | 6,040,000 | 5,837,000 | 6,983,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,000,000 | 4,200,000 | 8,900,000 | 7,400,000 | (800,000) |  | (1,600,000) |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition-related costs excluded from pro forma net earnings |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,900,000 |  | 5,400,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition-related costs incurred but excluded from pro forma earnings during the period after tax |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,400,000 |  | 3,300,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Nonrecurring expense related to fair value adjustments excluded from pro forma net earnings |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,600,000 |  | 4,600,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value adjustments excluded from pro form net earnings after tax |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,400,000 |  | 4,400,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Assets acquired [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash |  |  |  |  |  |  |  |  | 8,388,000 |  |  |  |  |  |  |  |  |  | 20,913,000 |  | 0 |  | 20,913,000 |  | 8,388,000 | 8,388,000 | 0 | 0 | 0 | 0 | 27,457,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 6,544,000 | [1]
Accounts receivable |  |  |  |  |  |  |  |  | 12,535,000 |  |  |  |  |  |  |  |  |  | 29,388,000 |  | 1,000 |  | 29,389,000 |  | 11,580,000 | 11,541,000 | (39,000) | 994,000 | 994,000 | 0 | 38,802,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 9,413,000 | [1]
Inventories |  |  |  |  |  |  |  |  | 8,348,000 |  |  |  |  |  |  |  |  |  | 33,156,000 |  | 3,273,000 |  | 36,429,000 | [2] | 6,258,000 | 7,355,000 | 1,097,000 | 2,588,000 | 993,000 | (1,595,000) | 54,030,000 |  |  |  |  | 46,200,000 |  | 46,200,000 |  |  |  |  |  |  |  |  |  |  |  |  | 17,601,000 | [1],[2]
Other current assets |  |  |  |  |  |  |  |  | 2,047,000 |  |  |  |  |  |  |  |  |  | 5,387,000 |  | 13,697,000 |  | 19,084,000 |  | 1,953,000 | 1,619,000 | (334,000) | 83,000 | 428,000 | 345,000 | 21,718,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,634,000 | [1]
Property, plant and equipment |  |  |  |  |  |  |  |  | 9,300,000 |  |  |  |  |  |  |  |  |  | 28,176,000 |  | 0 |  | 28,176,000 | [3] | 4,693,000 | 5,790,000 | 1,097,000 | 2,285,000 | 3,510,000 | 1,225,000 | 38,616,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10,440,000 | [1],[3]
Intangible assets |  |  |  |  |  |  |  |  | 7,580,000 |  |  |  |  |  |  |  |  |  | 21,188,000 |  | (9,153,000) |  | 12,035,000 | [4] | 0 | 6,110,000 | 6,110,000 | 0 | 1,470,000 | 1,470,000 | 58,540,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 46,505,000 | [1],[4]
Other assets |  |  |  |  |  |  |  |  | 3,096,000 |  |  |  |  |  |  |  |  |  | 536,000 |  | 6,203,000 |  | 6,739,000 | [5] | 1,151,000 | 1,349,000 | 198,000 | 84,000 | 1,747,000 | 1,663,000 | 9,423,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,684,000 | [1]
Total identifiable assets |  |  |  |  |  |  |  |  | 51,294,000 |  |  |  |  |  |  |  |  |  | 138,744,000 |  | 14,021,000 |  | 152,765,000 |  | 34,023,000 | 42,152,000 | 8,129,000 | 6,034,000 | 9,142,000 | 3,108,000 | 248,586,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 95,821,000 | [1]
Liabilities assumed [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accounts payable |  |  |  |  |  |  |  |  | (8,910,000) |  |  |  |  |  |  |  |  |  | (26,180,000) |  | 0 |  | (26,180,000) |  | (8,565,000) | (8,234,000) | 331,000 | (677,000) | (676,000) | 1,000 | (36,862,000) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (10,682,000) | [1]
Accrued expenses |  |  |  |  |  |  |  |  | (4,750,000) |  |  |  |  |  |  |  |  |  | (20,290,000) |  | (4,505,000) |  | (24,795,000) | [5] | (4,003,000) | (4,465,000) | (462,000) | (206,000) | (285,000) | (79,000) | (29,729,000) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (4,934,000) | [1]
Other current liabilities |  |  |  |  |  |  |  |  | (759,000) |  |  |  |  |  |  |  |  |  | 223,000 |  | 0 |  | 223,000 |  | (25,000) | (759,000) | (734,000) | (214,000) | 0 | 214,000 | 166,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (57,000) | [1]
Noncurrent liabilities |  |  |  |  |  |  |  |  | (2,334,000) |  |  |  |  |  |  |  |  |  | 761,000 |  | (39,686,000) |  | (38,925,000) | [5] | 0 | (586,000) | (586,000) | (643,000) | (1,748,000) | (1,105,000) | (60,120,000) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (21,195,000) | [1]
Total liabilities assumed |  |  |  |  |  |  |  |  | (16,753,000) |  |  |  |  |  |  |  |  |  | (45,486,000) |  | (44,191,000) |  | (89,677,000) |  | (12,593,000) | (14,044,000) | (1,451,000) | (1,740,000) | (2,709,000) | (969,000) | (126,545,000) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (36,868,000) | [1]
Net identifiable assets acquired |  |  |  |  |  |  |  |  | 34,541,000 |  |  |  |  |  |  |  |  |  | 93,258,000 |  | (30,170,000) |  | 63,088,000 |  | 21,430,000 | 28,108,000 | 6,678,000 | 4,294,000 | 6,433,000 | 2,139,000 | 122,041,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 58,953,000 | [1]
Goodwill | 130,224,000 |  | 130,224,000 |  | 18,490,000 |  |  |  | 4,812,000 |  |  |  |  |  |  |  |  |  | 37,534,000 |  | 30,170,000 |  | 67,704,000 | [6] | 8,278,000 | 1,240,000 | (7,038,000) | 5,666,000 | 3,572,000 | (2,094,000) | 111,952,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 44,248,000 | [1],[6]
Net assets acquired |  |  |  |  |  |  |  |  | 39,353,000 |  |  |  |  |  |  |  |  |  | 130,792,000 |  | 0 |  | 130,792,000 |  | 29,708,000 | 29,348,000 | (360,000) | 9,960,000 | 10,005,000 | 45,000 | 233,993,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 103,201,000 | [1]
Consideration transferred [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash Paid |  |  |  |  |  |  |  |  | 39,353,000 |  |  |  |  |  |  |  |  | 130,792,000 |  | 0 |  | 130,792,000 |  |  | 22,400,000 | 29,348,000 | 6,948,000 | 9,960,000 | 10,005,000 | 45,000 | 233,993,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 103,201,000 | [1] |  |
Assumption of severance payment |  |  |  |  |  |  |  |  | 0 |  |  |  |  |  |  |  |  | 0 |  | 0 |  | 0 |  |  | 109,000 | 0 | (109,000) | 0 | 0 | 0 | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 | [1] |  |
Fair value of consideration transferred |  |  |  |  |  |  |  |  | 39,353,000 |  |  |  |  |  |  |  |  | 130,792,000 |  | 0 |  | 130,792,000 |  |  | 22,509,000 | 29,348,000 | 6,839,000 | 9,960,000 | 10,005,000 | 45,000 | 233,993,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 103,201,000 | [1] |  |
Deferred consideration |  |  |  |  |  |  |  |  | 0 |  |  |  |  |  |  |  |  | 0 |  | 0 |  | 0 |  |  | 7,199,000 | 0 | (7,199,000) | 0 | 0 | 0 | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 | [1] |  |
Total consideration paid |  |  |  |  |  |  |  |  | 39,353,000 |  |  |  |  |  |  |  |  | 130,792,000 |  | 0 |  | 130,792,000 |  |  | 29,708,000 | 29,348,000 | (360,000) | 9,960,000 | 10,005,000 | 45,000 | 233,993,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 103,201,000 | [1] |  |
Intangible assets with finite lives [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted Average Life |  |  |  |  |  |  | 20 years | 15 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acquisition-Date Fair Value |  |  | 58,540,000 |  |  | 7,115,000 | 20,818,000 | 30,607,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unaudited Pro forma Consolidated Results of Operations [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 163,040,000 | 185,091,000 | 480,482,000 | 533,605,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Net earnings |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 8,417,000 | $ (28,213,000) | $ 6,388,000 | $ (39,714,000) |  |  |  |  |  |  |  |  |  |  |  |  |
Earnings per common share - basic and diluted (in dollars per share) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0.68 | $ (2.38) | $ 0.51 | $ (3.36) | $ 0.72 | $ (2.50) | $ 0.56 | $ (3.51) |  |  |  |  |
[1] | The Company acquired the U.S. and U.K. entities of Connectivity Solutions on July 25, 2014 and the China entity of Connectivity Solutions on August 29, 2014. These values represent the estimated fair values as of the respective acquisition date.
[2] | The inventory amounts noted above for both Power Solutions and Connectivity Solutions include preliminary adjustments to acquisition-date fair value.
[3] | The appraisals related to machinery and equipment acquired were still in progress as of this filing date; however, the amount noted above for Connectivity Solutions includes preliminary adjustments to acquisition-date fair value. The amounts noted above for Power Solutions property, plant and equipment only include the carrying value of those assets on Power Solutions' balance sheet as of the acquisition date.
[4] | The Company has identified certain intangible assets related to the Power Solutions acquisition, including trademarks and trade names, developed technology and potential in-process research and development, license agreements, non-compete agreements, an investment in a 49%-owned joint venture and customer relationships, which are being valued by a third-party appraiser. These appraisals were not complete as of the date of this filing. The Company has also identified certain intangible assets related to the Connectivity Solutions acquisition, including trademarks, developed technology and customer relationships, which are being valued by a third-party appraiser. While these appraisals were still in progress as of the date of this filing, preliminary estimated adjustments to fair value have been reflected in the table above.
[5] | The Company recorded measurement period adjustments related to estimated uncertain tax provisions and other tax liabilities, including an indemnification asset related to certain liabilities. While these estimates were still in progress as of the date of this filing, preliminary estimated adjustments to these liabilities have been reflected in the table above.
[6] | The amount of goodwill is provisional as of the filing date, as the fair value determination of inventory acquired, and appraisals related to property, plant and equipment, various intangible assets and certain liabilities such as lease liabilities are still underway. As the final amount of goodwill has not yet been determined or allocated by segment, the Company is unable to determine at this time the portion of goodwill, if any, that will be deductible for tax purposes.

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