Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Current assets
Cash and cash equivalents	$ 84,539	$ 88,747
Accounts receivable (less allowance for doubtful accounts of $1,169 at March 31, 2014 and $1,729 at December 31, 2013)	110,178	120,122
Inventory	1,320	1,286
Prepaid expenses	10,321	8,528
Current deferred income tax asset	6,030	7,696
Prepaid income tax	4,520	4,755
Other current assets	7,309	8,171
Total current assets	224,217	239,305
Property, plant and equipment (less accumulated depreciation of $172,963 at March 31, 2014 and $169,854 at December 31, 2013)	39,429	40,711
Goodwill	398,164	398,164
Other intangible assets (less accumulated amortization of $9,755 at March 31, 2014 and $9,748 at December 31, 2013)	2,296	2,303
Other assets	4,786	5,053
Total assets	668,892	685,536
Current liabilities
Current maturities of long-term debt	16,844	15,313
Accounts payable	36,877	36,756
Accrued payroll and related expenses	12,749	16,255
Deferred revenue and customer advances	35,928	36,257
Income taxes payable	886	3,407
Customer postage and program deposits	21,780	23,877
Other current liabilities	6,405	8,978
Total current liabilities	131,469	140,843
Long-term debt	78,094	82,687
Other long-term liabilities (including deferred income taxes of $67,947 at March 31, 2014 and $65,788 at December 31, 2013)	113,177	112,952
Total liabilities	322,740	336,482
Stockholders' equity
Common stock, $1 par value, 250,000,000 shares authorized 119,478,549 shares issued at March 31, 2014 and 119,186,705 shares issued at December 31, 2013	119,479	119,187
Additional paid-in capital	345,445	345,095
Retained earnings	1,159,669	1,163,201
Less treasury stock, 56,698,498 shares at cost at March 31, 2014 and 56,600,972 shares at cost at December 31, 2013	(1,251,062)	(1,250,311)
Accumulated other comprehensive loss	(27,379)	(28,118)
Total stockholders' equity	346,152	349,054
Total liabilities and stockholders' equity	$ 668,892	$ 685,536