Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Current assets
Cash and cash equivalents	$ 202,463	$ 193,441
Receivables (net of allowance for doubtful accounts of $8,557 and $8,719, respectively)	107,336	89,352
Income taxes receivable	316	5,486
Notes receivable, net of allowances	7,873	5,107
Other current assets	26,885	17,567
Total current assets	344,873	310,953
Property and equipment, at cost, net	84,061	88,158
Goodwill	78,905	79,327
Intangible assets, net	15,738	11,948
Notes receivable, net of allowances	110,608	82,572
Investments, employee benefit plans, at fair value	16,975	17,674
Investments in unconsolidated entities	94,839	67,037
Deferred income taxes	52,812	42,434
Other assets	53,657	16,907
Total assets	852,468	717,010
Current liabilities
Accounts payable	48,071	64,431
Accrued expenses and other current liabilities	80,388	70,648
Deferred revenue	133,218	71,587
Current portion of long-term debt	1,195	1,191
Income taxes payable	796	159
Total current liabilities	263,668	208,016
Long-term debt	839,409	812,945
Deferred compensation and retirement plan obligations	21,595	22,859
Deferred income taxes	292	506
Other liabilities	38,853	68,583
Total liabilities	1,163,817	1,112,909
Commitments and Contingencies
SHAREHOLDERS' DEFICIT
Common stock, $0.01 par value; 160,000,000 shares authorized; 95,065,638 shares issued at December 31, 2016 and 2015 and 56,299,949 and 56,336,566 shares outstanding at December 31, 2016 and 2015, respectively	951	951
Additional paid-in-capital	159,045	149,895
Accumulated other comprehensive loss	(8,522)	(8,778)
Treasury stock (38,765,689 and 38,729,072 shares at December 31, 2016 and 2015, respectively), at cost	(1,070,383)	(1,052,864)
Retained earnings	607,560	514,897
Total shareholders’ deficit	(311,349)	(395,899)
Total liabilities and shareholders’ deficit	$ 852,468	$ 717,010