Supplemental Guarantor Information Consolidating Condensed Statement of Cash Flows (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided (Used) by Operating Activities	$ (35,549)	$ 138
Investing Activities
Purchases of property and equipment	(5,896)	(9,295)
Proceeds from sale of property and equipment	23,093	9
Proceeds from Divestiture of Business, net	13,700	21,870
Other long-term assets	13,349	12,083
Other	107	177
Net Cash Provided by Investing Activities	44,353	24,844
Financing Activities
Proceeds from revolving lines of credit and long-term borrowings	194,610	201,766
Payments on revolving lines of credit and long-term borrowings	(205,333)	(226,432)
Proceeds from exercise of stock options	1,914	162
Payment of financing costs	(1,954)	0
Payment of dividends	(1,192)	(1,188)
Net Cash Used by Financing Activities	(11,955)	(25,692)
Effect of exchange rate changes on cash	(2,308)	(9)
Decrease in cash and cash equivalents	(5,459)	(719)
Cash and cash equivalents at beginning of year	38,931	29,785
Cash and cash equivalents at end of period	33,472	29,066
The Company (Parent) [Member]
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided (Used) by Operating Activities	(35,374)	(30,886)
Investing Activities
Purchases of property and equipment	(336)	(1,901)
Proceeds from sale of property and equipment	23,039	0
Proceeds from Divestiture of Business, net	0	0
Other long-term assets	12,828	12,060
Other	51	40,728
Net Cash Provided by Investing Activities	35,582	50,887
Financing Activities
Proceeds from revolving lines of credit and long-term borrowings	190,486	201,766
Payments on revolving lines of credit and long-term borrowings	(193,544)	(220,390)
Proceeds from exercise of stock options	1,914	162
Payment of financing costs	(1,549)
Payment of dividends	(1,192)	(1,188)
Net Cash Used by Financing Activities	(3,885)	(19,650)
Effect of exchange rate changes on cash	0	0
Decrease in cash and cash equivalents	(3,677)	351
Cash and cash equivalents at beginning of year	7,340	1,401
Cash and cash equivalents at end of period	3,663	1,752
Combined Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided (Used) by Operating Activities	(1,606)	(498)
Investing Activities
Purchases of property and equipment	(507)	(1,030)
Proceeds from sale of property and equipment	48	0
Proceeds from Divestiture of Business, net	13,700	21,870
Other long-term assets	0	0
Other	47	(17,093)
Net Cash Provided by Investing Activities	13,288	3,747
Financing Activities
Proceeds from revolving lines of credit and long-term borrowings	0	0
Payments on revolving lines of credit and long-term borrowings	(11,789)	(3,091)
Proceeds from exercise of stock options	0	0
Payment of financing costs	0
Payment of dividends	0	0
Net Cash Used by Financing Activities	(11,789)	(3,091)
Effect of exchange rate changes on cash	0	0
Decrease in cash and cash equivalents	(107)	158
Cash and cash equivalents at beginning of year	355	313
Cash and cash equivalents at end of period	248	471
Combined Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided (Used) by Operating Activities	1,431	8,089
Investing Activities
Purchases of property and equipment	(5,053)	(6,364)
Proceeds from sale of property and equipment	6	9
Proceeds from Divestiture of Business, net	0	0
Other long-term assets	521	23
Other	9	(25)
Net Cash Provided by Investing Activities	(4,517)	(6,357)
Financing Activities
Proceeds from revolving lines of credit and long-term borrowings	4,124	0
Payments on revolving lines of credit and long-term borrowings	0	(2,951)
Proceeds from exercise of stock options	0	0
Payment of financing costs	(405)
Payment of dividends	0	0
Net Cash Used by Financing Activities	3,719	(2,951)
Effect of exchange rate changes on cash	(2,308)	(9)
Decrease in cash and cash equivalents	(1,675)	(1,228)
Cash and cash equivalents at beginning of year	31,236	28,071
Cash and cash equivalents at end of period	29,561	26,843
Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Net Cash Provided (Used) by Operating Activities	0	23,433
Investing Activities
Purchases of property and equipment	0	0
Proceeds from sale of property and equipment	0	0
Proceeds from Divestiture of Business, net	0	0
Other long-term assets	0	0
Other	0	(23,433)
Net Cash Provided by Investing Activities	0	(23,433)
Financing Activities
Proceeds from revolving lines of credit and long-term borrowings	0	0
Payments on revolving lines of credit and long-term borrowings	0	0
Proceeds from exercise of stock options	0	0
Payment of financing costs	0
Payment of dividends	0	0
Net Cash Used by Financing Activities	0	0
Effect of exchange rate changes on cash	0	0
Decrease in cash and cash equivalents	0	0
Cash and cash equivalents at beginning of year	0	0
Cash and cash equivalents at end of period	$ 0	$ 0