Supplemental Guarantor Information Consolidating Condensed Balance Sheets (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2013	Dec. 31, 2012
Current Assets
Cash and cash equivalents	$ 23,001	$ 29,785	$ 21,447	$ 38,791
Trade receivables, net	188,046	188,622
Installment receivables, net	1,508	1,562
Inventories, net	165,013	155,637
Deferred income taxes	2,246	2,761
Due from Affiliate, Current	0	0
Other current assets	38,601	41,172
Total Current Assets	418,415	419,539
Investment in subsidiaries	0	0
Intercompany advances, net	0	0
Other Assets	39,489	45,936
Other Intangibles	58,627	62,584
Property and Equipment, net	99,586	106,149
Goodwill	463,703	462,226
Total Assets	1,079,820	1,096,434
Current Liabilities
Accounts payable	123,064	116,704
Accrued expenses	128,736	133,100
Accrued income taxes	13,583	12,259
Due to Affiliate, Current	0	0
Short-term debt and current maturities of long-term obligations	2,456	14,102
Total Current Liabilities	267,839	276,165
Long-Term Debt	53,660	31,184
Other Long-Term Obligations	114,939	118,276
Inercompany advances, net	0	0
Total Shareholders' Equity	643,382	670,809
Total Liabilities and Shareholders' Equity	1,079,820	1,096,434
The Company (Parent) [Member]
Current Assets
Cash and cash equivalents	3,222	1,401	1,764	5,774
Trade receivables, net	59,657	72,272
Installment receivables, net	0	0
Inventories, net	21,578	30,806
Deferred income taxes	0	0
Due from Affiliate, Current	9,381	4,179
Other current assets	6,516	9,970
Total Current Assets	100,354	118,628
Investment in subsidiaries	1,501,793	1,475,156
Intercompany advances, net	999,265	959,071
Other Assets	36,416	42,831
Other Intangibles	454	466
Property and Equipment, net	32,720	35,169
Goodwill	0	0
Total Assets	2,671,002	2,631,321
Current Liabilities
Accounts payable	52,271	42,521
Accrued expenses	28,961	30,314
Accrued income taxes	3,545	5,375
Due to Affiliate, Current	49,257	42,314
Short-term debt and current maturities of long-term obligations	1,571	13,118
Total Current Liabilities	135,605	133,642
Long-Term Debt	47,986	25,642
Other Long-Term Obligations	50,279	53,470
Inercompany advances, net	1,793,750	1,747,758
Total Shareholders' Equity	643,382	670,809
Total Liabilities and Shareholders' Equity	2,671,002	2,631,321
Combined Guarantor Subsidiaries [Member]
Current Assets
Cash and cash equivalents	247	313	471	1,018
Trade receivables, net	28,715	28,317
Installment receivables, net	482	452
Inventories, net	27,126	27,472
Deferred income taxes	0	0
Due from Affiliate, Current	1,092	380
Other current assets	514	568
Total Current Assets	58,176	57,502
Investment in subsidiaries	467,832	450,021
Intercompany advances, net	1,676,731	1,620,683
Other Assets	1,056	1,061
Other Intangibles	15,453	17,109
Property and Equipment, net	15,904	17,774
Goodwill	16,660	16,660
Total Assets	2,251,812	2,180,810
Current Liabilities
Accounts payable	9,517	7,237
Accrued expenses	16,869	17,228
Accrued income taxes	0	0
Due to Affiliate, Current	1,950	2,124
Short-term debt and current maturities of long-term obligations	8	8
Total Current Liabilities	28,344	26,597
Long-Term Debt	20	61
Other Long-Term Obligations	0	0
Inercompany advances, net	1,000,948	959,172
Total Shareholders' Equity	1,222,500	1,194,980
Total Liabilities and Shareholders' Equity	2,251,812	2,180,810
Combined Non-Guarantor Subsidiaries [Member]
Current Assets
Cash and cash equivalents	19,532	28,071	19,212	31,999
Trade receivables, net	99,674	88,033
Installment receivables, net	1,026	1,110
Inventories, net	118,921	100,444
Deferred income taxes	2,246	2,761
Due from Affiliate, Current	50,469	44,292
Other current assets	33,381	35,461
Total Current Assets	325,249	300,172
Investment in subsidiaries	0	0
Intercompany advances, net	181,680	179,451
Other Assets	2,017	2,044
Other Intangibles	42,720	45,009
Property and Equipment, net	50,962	53,206
Goodwill	447,043	445,566
Total Assets	1,049,671	1,025,448
Current Liabilities
Accounts payable	61,276	66,946
Accrued expenses	84,716	90,385
Accrued income taxes	10,038	6,884
Due to Affiliate, Current	9,735	4,413
Short-term debt and current maturities of long-term obligations	877	976
Total Current Liabilities	166,642	169,604
Long-Term Debt	5,654	5,481
Other Long-Term Obligations	64,660	64,806
Inercompany advances, net	62,978	52,275
Total Shareholders' Equity	749,737	733,282
Total Liabilities and Shareholders' Equity	1,049,671	1,025,448
Eliminations [Member]
Current Assets
Cash and cash equivalents	0	0	0	0
Trade receivables, net	0	0
Installment receivables, net	0	0
Inventories, net	(2,612)	(3,085)
Deferred income taxes	0	0
Due from Affiliate, Current	(60,942)	(48,851)
Other current assets	(1,810)	(4,827)
Total Current Assets	(65,364)	(56,763)
Investment in subsidiaries	(1,969,625)	(1,925,177)
Intercompany advances, net	(2,857,676)	(2,759,205)
Other Assets	0	0
Other Intangibles	0	0
Property and Equipment, net	0	0
Goodwill	0	0
Total Assets	(4,892,665)	(4,741,145)
Current Liabilities
Accounts payable	0	0
Accrued expenses	(1,810)	(4,827)
Accrued income taxes	0	0
Due to Affiliate, Current	(60,942)	(48,851)
Short-term debt and current maturities of long-term obligations	0	0
Total Current Liabilities	(62,752)	(53,678)
Long-Term Debt	0	0
Other Long-Term Obligations	0	0
Inercompany advances, net	(2,857,676)	(2,759,205)
Total Shareholders' Equity	(1,972,237)	(1,928,262)
Total Liabilities and Shareholders' Equity	$ (4,892,665)	$ (4,741,145)