Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Assets
Cash and cash equivalents	$ 19,715	$ 18,925
Trade accounts receivable, net of allowance for doubtful accounts of $4,615 in 2011 and $4,708 in 2010	62,886	59,808
Prepaid expenses and other current assets	7,141	11,332
Deferred tax assets	6,398	4,758
Total current assets	96,140	94,823
Equity and other investments	14,913	18,385
Property and equipment, net	70,651	70,332
Goodwill, net	45,430	38,895
Other intangibles, net	10,526	6,272
Other noncurrent assets	1,308	534
Total assets	238,968	229,241
Liabilities and Stockholders' Equity
Accounts payable	10,534	10,007
Accrued expenses and other current liabilities	32,276	27,670
Current portion of long-term debt		53,000
Deferred revenue	37,080	36,479
Total current liabilities	79,890	127,156
Noncurrent deferred tax liabilities	1,302	2,695
Other noncurrent liabilities	30,960	21,739
Total liabilities	112,152	151,590
Commitments and contingencies
Stockholders' equity
Preferred stock, $100.00 par value, 750 shares authorized, no shares issued
Common stock, $0.50 par value, 500,000 shares authorized, 32,338 shares issued as of December 31, 2011, and 2010	16,169	16,169
Retained earnings	128,772	74,184
Common stock held in treasury, 5,048 shares in 2011 and 5,285 shares in 2010	(2,524)	(2,642)
Accumulated other comprehensive loss	(15,601)	(10,060)
Total stockholders' equity	126,816	77,651
Total liabilities and stockholders' equity	$ 238,968	$ 229,241