Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	May 31, 2016	May 31, 2015
Cash flows from operating activities:
Net income	$ 10,491	$ 4,798
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of property and equipment	4,382	4,999
Amortization of intangibles and other	15,527	16,496
Stock-based compensation	13,231	12,275
Loss on disposal of property	298	14
Asset impairment	0	3,947
Deferred income taxes	1,441	(28,966)
Excess tax benefit from stock plans	(258)	(710)
Allowances for accounts receivable	(504)	307
Changes in operating assets and liabilities:
Accounts receivable	19,364	15,226
Other assets	(5,444)	2,114
Accounts payable and accrued liabilities	(17,557)	(3,702)
Income taxes payable	962	1,340
Deferred revenue	7,329	29,793
Net cash flows from operating activities	49,262	57,931
Cash flows used in investing activities:
Purchases of investments	(25,970)	(19,266)
Sales and maturities of investments	4,885	5,941
Purchases of property and equipment	(2,617)	(4,405)
Capitalized software development costs	0	(1,383)
Payments for acquisitions, net of cash acquired	0	(246,275)
Proceeds from divestitures, net	0	4,500
Net cash flows used in investing activities	(23,702)	(260,888)
Cash flows (used in) from financing activities:
Proceeds from stock-based compensation plans	6,007	6,356
Purchases of stock related to withholding taxes from the issuance of restricted stock units	(2,751)	(2,851)
Repurchases of common stock	(58,516)	(32,868)
Excess tax benefit from stock plans	258	710
Proceeds from the issuance of debt	0	150,000
Payment of long-term debt	(5,625)	(3,750)
Payment of issuance costs for long-term debt	0	(1,707)
Net cash flows (used in) from financing activities	(60,627)	115,890
Effect of exchange rate changes on cash	2,421	(9,995)
Net decrease in cash and cash equivalents	(32,646)	(97,062)
Cash and cash equivalents, beginning of period	212,379	263,082
Cash and cash equivalents, end of period	179,733	166,020
Supplemental disclosure:
Cash paid for income taxes, net of refunds of $647 in 2016 and $1,335 in 2015	7,778	3,850
Cash paid for interest	1,559	1,427
Non-cash financing activities:
Total fair value of restricted stock awards, restricted stock units and deferred stock units on date vested	7,769	9,942
Unsettled repurchases of common stock	$ 1,516	$ 0