FAIR VALE MEASUREMENTS - Assets measured at fair value on nonrecurring basis (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Jun. 30, 2016
Dec. 31, 2015
Sep. 30, 2015
Dec. 31, 2016
Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Impairment charges for goodwill and other intangible assets $ 7,800 $ 1,400 $ 1,300 $ 12,005 $ 2,712
Amortizing intangible assets   22,868   18,049 22,868
Indefinite lived trade names          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Impairment charges for goodwill and other intangible assets       2,054 660
Indefinite lived trade names | Omnilink Systems, Inc.          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Impairment charges for goodwill and other intangible assets       2,054 660
Goodwill          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Impairment charges for goodwill and other intangible assets       9,870 924
Goodwill | DIY          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Impairment charges for goodwill and other intangible assets       215 924
Goodwill | Omnilink Systems, Inc.          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Impairment charges for goodwill and other intangible assets       9,655
Nonrecurring basis          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Impairment charges for goodwill and other intangible assets       12,005 2,712
Total nonrecurring fair value measurements   10,353   10,448 10,353
Nonrecurring basis | DIY          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Amortizing intangible assets   446     446
Total nonrecurring fair value measurements   825     825
Nonrecurring basis | Omnilink Systems, Inc.          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Amortizing intangible assets   660     660
Total nonrecurring fair value measurements   4,900     4,900
Nonrecurring basis | Indefinite lived trade names | Omnilink Systems, Inc.          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Impairment charges for goodwill and other intangible assets       2,054 682
Total nonrecurring fair value measurements   2,972   918 2,972
Nonrecurring basis | Technologies | DIY          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Impairment charges for goodwill and other intangible assets       81  
Total nonrecurring fair value measurements       164  
Nonrecurring basis | Goodwill | DIY          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Impairment charges for goodwill and other intangible assets       215 924
Total nonrecurring fair value measurements   1,656   1,441 1,656
Nonrecurring basis | Goodwill | Omnilink Systems, Inc.          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Impairment charges for goodwill and other intangible assets       9,655  
Total nonrecurring fair value measurements       7,925  
Nonrecurring basis | Level 3          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Total nonrecurring fair value measurements   10,353   10,448 10,353
Nonrecurring basis | Level 3 | Indefinite lived trade names | Omnilink Systems, Inc.          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Total nonrecurring fair value measurements       918  
Nonrecurring basis | Level 3 | Technologies | DIY          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Total nonrecurring fair value measurements       164  
Nonrecurring basis | Level 3 | Goodwill | DIY          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Total nonrecurring fair value measurements       $ 1,441  
Nonrecurring basis | Level 3 | Goodwill | Omnilink Systems, Inc.          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Total nonrecurring fair value measurements   $ 7,925     $ 7,925