Acquisitions (Details) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended				9 Months Ended		0 Months Ended	1 Months Ended	3 Months Ended		9 Months Ended				0 Months Ended	3 Months Ended		9 Months Ended
	Sep. 30, 2011 USD ($)	Sep. 30, 2010 USD ($)	Sep. 30, 2011 USD ($)	Sep. 30, 2010 USD ($)	Sep. 30, 2011 Customer lists Barcrest Year	Sep. 23, 2011 Customer lists Barcrest USD ($)	Sep. 30, 2011 Intellectual property Barcrest Year	Sep. 23, 2011 Intellectual property Barcrest USD ($)	Sep. 30, 2011 Barcrest USD ($)	Apr. 30, 2011 Barcrest GBP (£)	Sep. 30, 2011 Barcrest USD ($)	Sep. 30, 2010 Barcrest USD ($)	Sep. 30, 2011 Barcrest USD ($) Year	Sep. 30, 2010 Barcrest USD ($)	Sep. 23, 2011 Barcrest USD ($)	Sep. 23, 2011 Barcrest GBP (£)	Sep. 30, 2011 Diversified Gaming Group USD ($)	Sep. 30, 2011 Diversified Gaming Group USD ($)	Sep. 30, 2010 Diversified Gaming Group USD ($)	Sep. 30, 2011 Diversified Gaming Group USD ($)	Sep. 30, 2010 Diversified Gaming Group USD ($)
Acquisitions:
Estimated purchase price of acquisition at time of purchase agreement (in pounds)										£ 33,000
Deferred consideration (in pounds)										2,000
Actual purchase price at time of acquisition															48,400	31,406
Estimated fair values of the assets acquired and liabilities assumed at the acquisition date
Cash and cash equivalents															1,900
Accounts receivable, net of allowance of doubtful accounts of $2,000															21,300
Allowance of doubtful accounts															2,000
Inventories															10,300
Prepaid expenses, deposits and other current assets															1,000
Property and equipment															15,500
Deferred income taxes															700
Intangible assets															12,000
Total identifiable assets acquired															62,700
Accounts Payable															7,700
Accrued Liabilities															8,600
Total liabilities assumed
Net identifiable assets acquired															46,400
Goodwill															2,000
Net assets acquired															48,400
Trade names not subject to amortization															900
Acquired intangible assets						5,700		5,400							11,100
Weighted average useful life of acquired intangible assets (in years)					4		4.5						4
Acquisition related costs											1,700		4,300
Services	81,429	92,813	237,272	287,527					800									31,485	46,183	86,916	139,193
Sales	14,617	12,280	31,399	39,400					2,000									2,024	5,115	2,142	8,257
Goodwill																	2,000
Net (loss) income	(4,124)	8,704	(4,037)	9,248					400
Proforma information
Revenue											236,500	242,300	682,900	723,900
Net income (loss)											(4,000)	12,300	(1,500)	15,900
Adjustment made to eliminate intercompany revenue and costs											1,300	200	3,200	500
Adjustment made to reduce expenses in accordance with the Company's accounting policies											600	500	1,700	1,700
Adjustment made to reflect additional depreciation and amortization											$ 800	$ 700	$ 2,300	$ 2,200