Condensed Consolidated Statements of Comprehensive Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Condensed Consolidated Statements of Comprehensive Income
Operating revenues	$ 140,310	$ 140,105	$ 273,037	$ 272,457
Operating expenses
Labor	69,613	69,790	140,917	137,260
Production and distribution	42,158	40,571	82,434	79,556
Advertising, selling, general and administrative	13,860	13,558	26,590	25,985
Depreciation, software and intangible asset amortization	3,692	3,773	7,530	7,839
Total operating expenses	129,323	127,692	257,471	250,640
Operating income	10,987	12,413	15,566	21,817
Other (income) expenses
Interest expense, net	629	750	1,308	1,531
Other, net	1,075	82	1,809	(1,136)
Total other (income) expenses	1,704	832	3,117	395
Income from continuing operations before income taxes	9,283	11,581	12,449	21,422
Income tax expense	3,646	4,645	4,967	8,166
Income from continuing operations	5,637	6,936	7,482	13,256
Income from discontinued operations, net of income taxes		1,373		1,721
Net income	5,637	8,309	7,482	14,977
Basic earnings per common share
Continuing operations (in dollars per share)	$ 0.09	$ 0.11	$ 0.12	$ 0.21
Discontinued operations (in dollars per share)	$ 0.00	$ 0.02	$ 0.00	$ 0.03
Basic earnings per common share (in dollars per share)	$ 0.09	$ 0.13	$ 0.12	$ 0.24
Weighted-average common shares outstanding (in shares)	62,734	62,446	62,711	62,459
Diluted earnings per common share
Continuing operations (in dollars per share)	$ 0.09	$ 0.11	$ 0.12	$ 0.21
Discontinued operations (in dollars per share)	$ 0.00	$ 0.02	$ 0.00	$ 0.03
Diluted earnings per common share (in dollars per share)	$ 0.09	$ 0.13	$ 0.12	$ 0.24
Weighted-average common and common equivalent shares outstanding (in shares)	62,987	62,761	62,975	62,712
Other comprehensive income (loss), net of tax
Adjustment to pension liability	504	1,003	1,056	2,006
Foreign currency translation adjustments	420	(589)	607	(1,719)
Total other comprehensive income, net of tax	924	414	1,663	287
Comprehensive income	$ 6,561	$ 8,723	$ 9,145	$ 15,264