Quarterly Financial Data (unaudited) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended											12 Months Ended
	Dec. 31, 2012		Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011		Sep. 30, 2011		Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Quarterly Financial Data [Line Items]
Net sales	$ 120,880	[1]	$ 110,838	$ 116,262	$ 112,750	$ 122,432	[2]	$ 112,298	[3]	$ 113,329	$ 107,234	$ 460,730	$ 455,293	$ 460,626
Cost of sales	79,764	[1]	71,599	76,433	75,684	82,432	[2]	70,344	[3]	71,751	68,482	303,480	293,009	282,994
Gross profit	41,116	[1]	39,239	39,829	37,066	40,000	[2]	41,954	[3]	41,578	38,752	157,250	162,284	177,632
Selling, general, and administrative expenses	32,380	[1]	32,454	34,033	33,928	30,209	[2]	31,131	[3]	29,659	31,032	132,795	122,031	121,734
Multiemployer pension withdrawal (income) expense	31,683	[1]	(203)	0	0	0	[2]	0	[3]	1,846	0	(31,480)	(1,846)	200
Business and systems integration expenses	1,627	[1]	2,997	4,292	3,170	3,082	[2]	1,997	[3]	2,149	1,239	12,086	8,467	1,294
Acquisition integration and restructuring expenses	596	[1]	1,218	2,472	1,084	(120)	[2]	468	[3]	691	431	5,370	1,470	2,244
Impairment of long-lived assets	75	[1]	4,281	0	0	40	[2]	0	[3]	0	0	4,356	40	688
Foreign exchange loss (gain)	1,275	[1]	(12)	90	470	283	[2]	121	[3]	207	501	(1,823)	(1,112)	(2,306)
Operating income (loss)	(26,520)	[1]	(1,496)	(1,058)	(1,586)	6,506	[2]	8,237	[3]	7,026	5,549	(30,660)	27,318	49,566
Other income (expense) [Abstract]
Interest income	47	[1]	57	9	16	16	[2]	4	[3]	21	18	129	59	39
Interest expense	(976)	[1]	(917)	(917)	(842)	(1,498)	[2]	(1,212)	[3]	(1,273)	(1,287)	(3,652)	(5,270)	(7,201)
Income before income taxes	(27,449)	[1]	(2,356)	(1,966)	(2,412)	5,024	[2]	7,029	[3]	5,774	4,280	(34,183)	22,107	42,404
Income tax benefit	(9,349)	[1]	(143)	(470)	(805)	(750)	[2]	(1,057)	[3]	1,812	1,491	(10,767)	1,496	9,984
Net income (loss)	(18,100)	[1]	(2,213)	(1,496)	(1,607)	5,774	[2]	8,086	[3]	3,962	2,789	(23,416)	20,611	32,420
Earnings per share [Abstract]
Basic (in dollars per share)	$ (0.69)	[1]	$ (0.09)	$ (0.06)	$ (0.06)	$ 0.22	[2]	$ 0.31	[3]	$ 0.15	$ 0.11	$ (0.9)	$ 0.80	$ 1.27
Diluted (in dollars per share)	$ (0.69)	[1]	$ (0.09)	$ (0.06)	$ (0.06)	$ 0.22	[2]	$ 0.31	[3]	$ 0.15	$ 0.11	$ (0.9)	$ 0.79	$ 1.25
Change in valuation allowance													6,442
Reduction of contingent consideration payable						3,320
Reduction of an employment tax reserve													825
United Kingdom Subsidiary [Member]
Earnings per share [Abstract]
Change in valuation allowance								4,008
Australian Subsidiary [Member]
Earnings per share [Abstract]
Change in valuation allowance						$ 2,124

[1] Results for the fourth quarter of 2012 were unfavorably impacted by the Company's decision to withdraw from the Graphic Communications Conference International Brotherhood of Teamsters National Pension Fund. An estimated withdrawal liability of $31,683 was recorded in the fourth quarter of 2012.

[2] Results for the fourth quarter of 2011 were favorably impacted by a decrease in the effective tax rate for the quarter. The decrease in the effective tax rate was principally due to discrete period tax benefits related to the release of certain valuation allowances in the amount of $2,124, primarily for the Company's Australian subsidiary. In addition, the fourth quarter of 2011 operating results were favorably impacted by the reduction of an estimated contingent consideration liability in the amount of $3,320, related to a 2010 acquisition, and $825 related to the reduction of an employment tax reserve for a 2008 acquisition.

[3] Results for the third quarter of 2011 were favorably impacted by a decrease in the effective tax rate for the quarter. The decrease in the effective tax rate was principally due to discrete period tax benefits related to the release of certain valuation allowances in the amount of $4,008, primarily for the Company's United Kingdom subsidiary.