Unaudited Consolidated Condensed Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Cash flows from operating activities
Net income	$ 43,247	$ 43,352
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	31,595	31,583
Amortization of debt issue costs and accretion of discount	2,361	2,490
Provision for doubtful accounts and sundry losses	369	107
Deferred tax benefit	(1,113)	(1,799)
Share-based compensation	7,322	4,189
Loss on disposition of property and equipment and other intangibles	11	176
Earnings of equity method investment	374	258
Dividend received from equity method investment	390	0
(Increase) decrease in assets:
Accounts receivable, net	811	953
Prepaid expenses and other assets	(4,236)	(6,067)
Other long-term assets	(333)	188
(Decrease) increase in liabilities:
Accounts payable and accrued liabilities	(8,856)	(9,215)
Income tax payable	2,487	932
Unearned income	3,102	4,126
Other long-term liabilities	73	297
Total adjustments	33,609	27,702
Net cash provided by operating activities	76,856	71,054
Cash flows from investing activities
Additions to software	(9,015)	(9,989)
Property and equipment acquired	(6,837)	(5,485)
Proceeds from sales of property and equipment	14	25
Net cash used in investing activities	(15,838)	(15,449)
Cash flows from financing activities
Statutory withholding taxes paid on share-based compensation	(2,014)	(1,485)
Net (decrease) increase in short-term borrowings	(12,000)	20,000
Repayment of short-term borrowing for purchase of equipment and software	(700)	(996)
Dividends paid	0	(14,523)
Repurchase of common stock	0	(7,671)
Repayment of long-term debt	(36,262)	(9,707)
Net cash used in financing activities	(50,976)	(14,382)
Net increase in cash, cash equivalents and restricted cash	10,042	41,223
Cash, cash equivalents and restricted cash at beginning of the period	60,367	60,032
Cash, cash equivalents and restricted cash	70,409	101,255
Reconciliation of cash, cash equivalents and restricted cash
Cash and cash equivalents	59,333	93,060
Restricted cash	11,076	8,195
Cash, cash equivalents and restricted cash	70,409	101,255
Supplemental disclosure of cash flow information:
Cash paid for interest	13,649	12,280
Cash paid for income taxes	4,719	5,116
Supplemental disclosure of non-cash activities:
Payable due to vendor related to software acquired	$ 360	$ 2,360