Acquisitions - Additional Information (Detail)	3 Months Ended	6 Months Ended				1 Months Ended		6 Months Ended	1 Months Ended				1 Months Ended			6 Months Ended		1 Months Ended				6 Months Ended		1 Months Ended
	Jun. 30, 2012 USD ($)	Jun. 30, 2012 USD ($)	Dec. 31, 2011 USD ($)		Dec. 31, 2010 USD ($)	Apr. 02, 2012 payment solution AG USD ($)	Jan. 30, 2012 payment solution AG USD ($) Person	Jun. 30, 2012 payment solution AG USD ($)	Jan. 30, 2012 payment solution AG Minimum	Jan. 30, 2012 payment solution AG Maximum	Jan. 30, 2012 payment solution AG Customer relationships USD ($)	Jan. 30, 2012 payment solution AG Contract Backlog USD ($)	Jan. 30, 2012 payment solution AG Mountain Partners Aktiengesellschaft	Jul. 18, 2011 polyright SA USD ($)	Jul. 18, 2011 polyright SA CHF	Jun. 30, 2012 polyright SA USD ($)	Dec. 31, 2011 polyright SA USD ($)	Jul. 18, 2011 polyright SA Minimum	Jul. 18, 2011 polyright SA Maximum	Jan. 30, 2012 idOnDemand, Inc.	May 02, 2011 idOnDemand, Inc. USD ($)	Jun. 30, 2012 idOnDemand, Inc. USD ($)	Dec. 31, 2011 idOnDemand, Inc. USD ($)	May 02, 2011 idOnDemand, Inc. Minimum	May 02, 2011 idOnDemand, Inc. Maximum
Business Acquisition [Line Items]
Percentage of outstanding shares acquired						82.50%	58.80%														95.80%
Number of selling shareholders							18
Business acquisition, issued share						548,114	1,357,758
Business acquisition, percentage of outstanding common stock issued							2.40%
Percentage of ownership held													10.00%
Business acquisition, issued share value						$ 1,200,000	$ 3,000,000
Closing market price of common stock							$ 2.24
Intangible assets subject to amortization							4,200,000				1,323,000	344,000		1,500,000							4,300,000
Unfavorable contracts subject to amortization							538,000
Intangible assets, assumed discount rate							14.00%				16.00%	10.00%
Expected useful lives of intangible assets subject to amortization									4 years	10 years								1 year	6 years					1 year	6 years
Goodwill	48,950,000	48,950,000	58,404,000	[1]	47,126,000		12,958,000							2,700,000							7,799,000
Impairment loss of property and equipment	4,003,000	4,003,000						900,000								50,000						100,000
Impairment of acquisition-related intangible assets	19,912,000	19,912,000						2,100,000								600,000						3,300,000
Acquisition-related costs								200,000
Business acquisition, purchase price														3,100,000	2,550,000
Potential earn-out payments period														30 months	30 months						3 years 8 months
Lockup period for shares issued in connection with earn-out														2 years	2 years						12 months
Fair value of contingent consideration	108,000	108,000	5,765,000											3,400,000		108,000	302,000						5,463,000
Contingent consideration for earn-out liability recognized	100,000	100,000	5,800,000											300,000		100,000
Impairment of goodwill	21,450,000	21,450,000														1,000,000						7,000,000
Percentage of ownership interest acquired																				100.00%
Expenses recognized as a result of passage of time																						5,500,000
Deferred tax liability, net							(760,000)														1,500,000
Deferred tax asset, valuation allowance																					$ 1,500,000

[1] The condensed consolidated balance sheet has been derived from the audited consolidated financial statements at December 31, 2011 but does not include all the information and footnotes required by U.S. generally accepted accounting principles for complete financial statements.