Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Current assets:
Cash and cash equivalents	$ 8,487	$ 38,276
Marketable securities	314,941	314,135
Restricted cash		1,676
Accounts receivable, net of allowance for doubtful accounts of $80	4,660
Prepaid expenses and other current assets	2,055	4,807
Assets held for sale		6,000
Total current assets	330,143	364,894
Property and equipment, net	21,060
Goodwill	8,244
Intangible assets, net	5,786
Other long-term assets	3,444	2,658
Total assets	368,677	367,552
Current liabilities:
Accounts payable	1,841	3,353
Accrued expenses and other liabilities	3,826	4,398
3/4% convertible senior subordinated notes due 2023	346	346
Total current liabilities	6,013	8,097
Deferred income taxes	30	986
Other long-term liabilities	10,737	12,203
Total liabilities	16,780	21,286
Commitments and contingencies (Note 12)
Shareholders' equity:
Preferred stock; $0.001 par value; Authorized shares, 1,000; Series A Shares, 250 designated; outstanding shares, none
Common stock; $0.001 par value; Authorized shares, 40,000; outstanding shares, 10,892 and 10,882 at December 31, 2011 and 2010, respectively	108	108
Additional paid-in capital	171,539	170,987
Accumulated other comprehensive income	743	2,861
Retained earnings	179,079	172,310
Non-controlling interest in The Show	428
Total shareholders' equity	351,897	346,266
Total liabilities and shareholders' equity	$ 368,677	$ 367,552