Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Cash flows from operating activities:
Net income	$ 11,515	$ 13,833
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and accretion	10,608	12,628
Amortization of deferred financing costs	0	194
Deferred income tax expense	6,989	7,726
Amortization of stock based compensation	1,497	2,816
Provision for doubtful accounts, service credits and other	1,040	875
Adjustment of non-cash transaction taxes	(530)	(259)
Gain on disposals of property and equipment	(794)	(2)
Changes in assets and liabilities:
Accounts receivable	1,896	(4,615)
Prepaid expenses and other assets	1,878	(240)
Accounts payable, accrued liabilities and accrued compensation and benefits	(8,446)	(1,968)
Deferred revenue and customer deposits	4,002	1,264
Other long-term liabilities	45	0
Net cash provided by operating activities	29,700	32,252
Cash flows from investing activities:
Purchase of property and equipment	(4,450)	(6,327)
Proceeds from disposals of property and equipment	807	63
Net cash used in investing activities	(3,643)	(6,264)
Cash flows from financing activities:
Cash dividends to stockholders	(8,739)	(8,123)
Purchase of common stock	(11,804)	0
Net cash used in financing activities	(20,543)	(8,123)
Net increase in cash and cash equivalents	5,514	17,865
Cash and cash equivalents, beginning of period	107,869	89,075
Cash and cash equivalents, end of period	113,383	106,940
Supplemental disclosure:
Interest paid	2	7
Income taxes paid	$ 1,169	$ 1,327