Supplemental Guarantor Information Consolidating Condensed Balance Sheets (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014	Dec. 31, 2013
Current Assets
Cash and cash equivalents	$ 22,671	$ 38,931	$ 23,001	$ 29,785
Trade receivables, net	157,511	154,207
Installment receivables, net	1,083	1,054
Inventories, net	153,773	155,561
Deferred income taxes	1,706	2,048
Due from Affiliate, Current	0	0
Other current assets	34,970	36,798
Assets held for sale	15,189	17,388
Total Current Assets	386,903	405,987
Investment in subsidiaries	0	0
Intercompany advances, net	0	0
Other Assets	6,544	19,053
Intangibles	33,148	38,013
Property and Equipment, net	88,230	79,659
Goodwill	376,205	421,019
Total Assets	891,030	963,731
Current Liabilities
Accounts payable	116,561	119,927
Accrued expenses	133,695	155,699
Accrued income taxes	10,071	12,634
Due to Affiliate, Current	0	0
Short-term debt and current maturities of long-term obligations	1,889	959
Liabilities sold		1,013
Liabilities held for sale	1,443	1,013
Total Current Liabilities	263,659	290,232
Long-Term Debt	45,960	19,372
Other Long-Term Obligations	88,501	88,805
Inercompany advances, net	0	0
Total Shareholders’ Equity	492,910	565,322
Total Liabilities and Shareholders’ Equity	891,030	963,731
The Company (Parent) [Member]
Current Assets
Cash and cash equivalents	4,986	7,340	3,222	1,401
Trade receivables, net	48,740	47,030
Installment receivables, net	0	0
Inventories, net	21,686	25,021
Deferred income taxes	0	0
Due from Affiliate, Current	9,753	10,007
Other current assets	6,449	8,082
Assets held for sale	3,791	3,982
Total Current Assets	95,405	101,462
Investment in subsidiaries	1,364,722	1,409,482
Intercompany advances, net	1,080,181	1,049,235
Other Assets	4,893	16,955
Intangibles	188	286
Property and Equipment, net	39,105	29,632
Goodwill	0	0
Total Assets	2,584,494	2,607,052
Current Liabilities
Accounts payable	50,156	48,815
Accrued expenses	35,700	51,613
Accrued income taxes	1,576	1,632
Due to Affiliate, Current	41,434	81,141
Short-term debt and current maturities of long-term obligations	864	0
Liabilities sold		632
Liabilities held for sale	770
Total Current Liabilities	130,500	183,833
Long-Term Debt	35,361	15,351
Other Long-Term Obligations	32,380	28,551
Inercompany advances, net	1,893,343	1,813,995
Total Shareholders’ Equity	492,910	565,322
Total Liabilities and Shareholders’ Equity	2,584,494	2,607,052
Combined Guarantor Subsidiaries [Member]
Current Assets
Cash and cash equivalents	235	355	247	313
Trade receivables, net	24,196	21,979
Installment receivables, net	266	292
Inventories, net	26,636	25,784
Deferred income taxes	0	0
Due from Affiliate, Current	307	976
Other current assets	318	228
Assets held for sale	11,398	13,406
Total Current Assets	63,356	63,020
Investment in subsidiaries	461,117	491,541
Intercompany advances, net	1,764,962	1,685,366
Other Assets	839	657
Intangibles	391	393
Property and Equipment, net	10,274	7,209
Goodwill	12,141	11,968
Total Assets	2,313,080	2,260,154
Current Liabilities
Accounts payable	8,764	6,363
Accrued expenses	24,435	20,533
Accrued income taxes	0	0
Due to Affiliate, Current	1,995	1,738
Short-term debt and current maturities of long-term obligations	271	0
Liabilities sold		381
Liabilities held for sale	673
Total Current Liabilities	36,138	29,015
Long-Term Debt	7,396	0
Other Long-Term Obligations	1,786	0
Inercompany advances, net	1,080,639	1,051,170
Total Shareholders’ Equity	1,187,121	1,179,969
Total Liabilities and Shareholders’ Equity	2,313,080	2,260,154
Combined Non-Guarantor Subsidiaries [Member]
Current Assets
Cash and cash equivalents	17,450	31,236	19,532	28,071
Trade receivables, net	84,575	85,198
Installment receivables, net	817	762
Inventories, net	107,616	107,139
Deferred income taxes	1,706	2,048
Due from Affiliate, Current	40,599	84,816
Other current assets	29,748	33,123
Assets held for sale	0	0
Total Current Assets	282,511	344,322
Investment in subsidiaries	0	0
Intercompany advances, net	184,870	184,652
Other Assets	812	1,441
Intangibles	32,569	37,334
Property and Equipment, net	38,851	42,818
Goodwill	364,064	409,051
Total Assets	903,677	1,019,618
Current Liabilities
Accounts payable	57,641	64,749
Accrued expenses	75,105	88,188
Accrued income taxes	8,495	11,002
Due to Affiliate, Current	7,231	12,921
Short-term debt and current maturities of long-term obligations	754	959
Liabilities sold		0
Liabilities held for sale	0
Total Current Liabilities	149,226	177,819
Long-Term Debt	3,203	4,021
Other Long-Term Obligations	54,335	60,254
Inercompany advances, net	56,031	54,088
Total Shareholders’ Equity	640,882	723,436
Total Liabilities and Shareholders’ Equity	903,677	1,019,618
Eliminations [Member]
Current Assets
Cash and cash equivalents	0	0	$ 0	$ 0
Trade receivables, net	0	0
Installment receivables, net	0	0
Inventories, net	(2,165)	(2,383)
Deferred income taxes	0	0
Due from Affiliate, Current	(50,659)	(95,799)
Other current assets	(1,545)	(4,635)
Assets held for sale	0	0
Total Current Assets	(54,369)	(102,817)
Investment in subsidiaries	(1,825,839)	(1,901,023)
Intercompany advances, net	(3,030,013)	(2,919,253)
Other Assets	0	0
Intangibles	0	0
Property and Equipment, net	0	0
Goodwill	0	0
Total Assets	(4,910,221)	(4,923,093)
Current Liabilities
Accounts payable	0	0
Accrued expenses	(1,545)	(4,635)
Accrued income taxes	0	0
Due to Affiliate, Current	(50,660)	(95,800)
Short-term debt and current maturities of long-term obligations	0	0
Liabilities sold		0
Liabilities held for sale	0
Total Current Liabilities	(52,205)	(100,435)
Long-Term Debt	0	0
Other Long-Term Obligations	0	0
Inercompany advances, net	(3,030,013)	(2,919,253)
Total Shareholders’ Equity	(1,828,003)	(1,903,405)
Total Liabilities and Shareholders’ Equity	$ (4,910,221)	$ (4,923,093)