SUBSEQUENT EVENTS (Details) (USD $)		12 Months Ended							12 Months Ended				12 Months Ended					12 Months Ended					12 Months Ended
	Dec. 31, 2013	Dec. 31, 2013 Wells Fargo Bank, National Association [Member] Term Loan [Member]	Dec. 31, 2013 Wells Fargo Bank, National Association [Member] Term Loan [Member] LIBOR [Member]	Dec. 31, 2013 Wells Fargo Bank, National Association [Member] Revolving Credit Facility [Member] Minimum [Member]	Dec. 31, 2013 Wells Fargo Bank, National Association [Member] Revolving Credit Facility [Member] Maximum [Member]	Dec. 31, 2013 Wells Fargo Bank, National Association [Member] Revolving Credit Facility [Member] LIBOR [Member]	Dec. 31, 2013 Wells Fargo Bank, National Association [Member] Revolving Credit Facility [Member] LIBOR [Member] Minimum [Member]	Dec. 31, 2013 Wells Fargo Bank, National Association [Member] Revolving Credit Facility [Member] LIBOR [Member] Maximum [Member]	Dec. 31, 2013 Wells Fargo Bank, National Association [Member] Revolving Credit Facility [Member] Prime rate [Member]	Dec. 31, 2013 Wells Fargo Bank, National Association [Member] Revolving Credit Facility [Member] Prime rate [Member] Minimum [Member]	Dec. 31, 2013 Wells Fargo Bank, National Association [Member] Revolving Credit Facility [Member] Prime rate [Member] Maximum [Member]	Dec. 31, 2013 Subsequent Event [Member]	Dec. 31, 2013 Subsequent Event [Member] Wells Fargo Bank, National Association [Member] Revolving Credit Facility [Member] LIBOR [Member]	Dec. 31, 2013 Subsequent Event [Member] Wells Fargo Bank, National Association [Member] Revolving Credit Facility [Member] LIBOR [Member] Minimum [Member]	Dec. 31, 2013 Subsequent Event [Member] Wells Fargo Bank, National Association [Member] Revolving Credit Facility [Member] LIBOR [Member] Maximum [Member]	Dec. 31, 2013 Subsequent Event [Member] Wells Fargo Bank, National Association [Member] Revolving Credit Facility [Member] Prime rate [Member] Minimum [Member]	Dec. 31, 2013 Subsequent Event [Member] Wells Fargo Bank, National Association [Member] Revolving Credit Facility [Member] Prime rate [Member] Maximum [Member]	Dec. 31, 2013 Subsequent Event [Member] B27, LLC [Member]	Jan. 02, 2014 Subsequent Event [Member] B27, LLC [Member]	Jan. 02, 2014 Subsequent Event [Member] B27, LLC [Member] Selling, General and Administrative Expenses [Member]	Jan. 02, 2014 Subsequent Event [Member] B27, LLC [Member] Term Loan [Member]	Jan. 02, 2014 Subsequent Event [Member] B27, LLC [Member] Revolving Credit Facility [Member]	Dec. 31, 2013 Subsequent Event [Member] B27, LLC [Member] Wells Fargo Bank, National Association [Member] Revolving Credit Facility [Member] Minimum [Member]	Dec. 31, 2013 Subsequent Event [Member] B27, LLC [Member] Wells Fargo Bank, National Association [Member] Revolving Credit Facility [Member] Maximum [Member]	Dec. 31, 2013 Pro Forma [Member]	Dec. 31, 2012 Pro Forma [Member]
Purchase price allocation [Abstract]
Cash	$ 12,804,000											$ 2,538,000
Accounts Receivable, net	53,314,000											51,448,000
Inventory	12,727,000											6,472,000
Property and equipment	38,421,000											14,573,000
Goodwill and intangibles	139,391,000											293,588,000
Other assets	3,793,000											948,000
Assets acquired	260,450,000											369,567,000
Current liabilities assumed	(49,482,000)											(52,818,000)
Non current liabilities assumed	(22,406,000)											(23,198,000)
Net assets acquired	188,562,000											293,551,000
Pro Forma Information [Abstract]
Net sales																									1,415,123,000	1,239,006,000
Net income																									67,759,000	53,453,000
Per share data [Abstract]
Basic earnings (in dollars per share)																									$ 4.67	$ 3.70
Diluted earnings (in dollars per share)																									$ 4.42	$ 3.51
Purchase price																			293,600,000
Transaction cost																				1,000,000
Borrowings under existing credit facility																					250,000,000	350,000,000
Purchase price financed under common stock issued																			4,000,000
Goodwill recognized on acquisition																			227,300,000
Intangible assets on acquisition																			66,300,000
Base rate			LIBOR			LIBOR			prime				LIBOR
Basis spread on base rate (in hundredths)			1.75%			1.50%	1.25%	2.25%	0.50%	0.25%	1.25%			1.25%	2.50%	0.25%	1.50%
Commitment fee (in hundredths)		0.25%		0.20%	0.40%																		0.20%	0.45%
Debt issuance costs																		2,000,000
Line of credit facility expiration period																		5 years
Nontax deductible goodwill or intangible assets																			$ 235,000,000