Debt (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended						12 Months Ended						12 Months Ended			0 Months Ended		0 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2012 Canadian Subsidiary [Member]	Dec. 31, 2012 Brandimage French subsidiary [Member]	Dec. 31, 2012 Swing-line Loan [Member]	Dec. 31, 2012 Credit Agreement 2010 [Member]	Dec. 31, 2012 Credit Agreement 2012 [Member]	Dec. 31, 2012 Letters of Credit [Member]	Dec. 31, 2012 LIBOR Borrowing [Member]	Dec. 31, 2012 Prime Rate Borrowings [Member]	Dec. 31, 2012 Bankers Acceptance Agreements Borrowing [Member] Canadian Subsidiary [Member]	Dec. 31, 2012 Business Insurance Premiums Financing [Member]	Dec. 31, 2012 Software License Agreement Financing [Member]	Dec. 31, 2012 Equipment and Software Maintenance [Member]	Jan. 27, 2012 Private shelf facility agreement [Member]	Dec. 31, 2012 Private shelf facility agreement [Member]	Jan. 27, 2012 Series E Senior Note [Member]	Jan. 27, 2012 Series F Senior Note [Member]	Dec. 31, 2012 Series A senior note payable - Tranche A [Member]	Dec. 31, 2011 Series A senior note payable - Tranche A [Member]	Dec. 31, 2012 Series A senior note payable - Tranche B [Member]	Dec. 31, 2011 Series A senior note payable - Tranche B [Member]	Dec. 31, 2012 Series A senior note payable - Tranche A & Tranche B [Member]	Dec. 31, 2012 Series E senior note payable [Member]	Dec. 31, 2011 Series E senior note payable [Member]	Dec. 31, 2012 Series F senior note payable [Member]	Dec. 31, 2011 Series F senior note payable [Member]
Debt obligations [Abstract]
Revolving credit agreement	$ 52,495	$ 68,968
Senior note payable																				1,843	3,687	2,458	3,687		0	17,206	25,000	0
Other	1,190	1,631
Total	82,986	95,179																						4,301
Less amounts due in one year or less	(4,262)	(21,442)																						3,072
Total	78,724	73,737																						1,229
Annual maturities of debt obligations [Abstract]
2013	4,262
2014	1,229
2015	0
2016	0
2017	52,495
Thereafter	25,000
Total	82,986	95,179																						4,301
Number of private placements of debt	2
Senior notes interest rate, minimum (in hundredths)	8.90%
Senior notes interest rate, maximum (in hundredths)	8.98%
Line of Credit Facility [Line Items]
Term of revolving credit facility							two and one-half years	five-year
Multicurrency revolving credit facility, maximum borrowing capacity						10,000	90,000	125,000	10,000								75,000
Maximum basis spread on LIBOR borrowings (in hundredths)							3.50%	2.25%
Interest rate (in hundredths)										2.44%	4.50%	3.55%
Optional increase in amount of Credit Agreement, maximum								50,000
Minimum number of new commitments to be obtained to increase the Credit Agreement								1
Basis spread on reference rate (in hundredths)								1.75%			1.50%
Amount outstanding				0						39,500	6,975	6,020	719	252	216
Debt instrument, face amount																		20,278	25,000
Debt instrument, interest rate, stated percentage (in hundredths)																		9.17%	4.38%
Debt instrument, maturity date																		Jan. 28, 2012	Jan. 27, 2019
Maximum number of maturities years under Shelf Facility																10 years
Notice period to terminate the unused portion																30 days
Multiemployer pension withdrawal liability	31,683	0
New borrowings													1,075	906	649
Last payments installments due date													June 2013	September 2013	December 2013
Notes payable	29,301	24,580			3
Deferred Financing Fees [Abstract]
Unamortized deferred financing fees	933
Legal fees capitalized	857
Amortization of deferred financing fees	$ 301	$ 606	$ 674