DISCONTINUED OPERATIONS: (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
	Jul. 31, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Mar. 31, 2015
Operating expenses:
Earnings (loss) from discontinued operations, net of tax		$ (971)	$ 3,819	$ 15,240	$ 12,513
Carrying amounts of the major classes of assets and liabilities
Assets from discontinued operations						$ 172,284
Liabilities from discontinued operations		4,065		4,065		57,433
ITO
DIVESTITURES
Total consideration	$ 131,000
Stated sale price of business	140,000
Closing adjustments and transaction costs	9,000
Contingent payments to be received subject to certain performance metrics	50,000
Gain on sale of business, net	9,300
Allocated interest expense			300	400	1,000
Earnings (loss) from discontinued operations
Revenues			52,194	69,410	163,515
Cost of revenue			41,207	50,837	127,056
Gross profit			10,987	18,573	36,459
Operating expenses:
Sales and marketing			541	1,192	1,917
General and administrative			2,169	6,053	7,485
Loss (gain) on sale of discontinued operations		1,011		(9,349)
Gains, losses and other items, net			795		1,215
Total operating expenses		1,011	3,505	(2,104)	10,617
Income (loss) from discontinued operations		(1,011)	7,482	20,677	25,842
Interest expense			(605)	(681)	(1,804)
Other, net			(68)	(230)	(327)
Earnings (loss) from discontinued operations before income taxes		(1,011)	6,809	19,766	23,711
Gain on sale of discontinued operations		(1,011)		9,349
Income taxes		(490)	2,672	4,076	9,300
Earnings (loss) from discontinued operations, net of tax		(521)	4,137	15,690	14,411
Carrying amounts of the major classes of assets and liabilities
Trade accounts receivable, net						35,743
Deferred income taxes						2,762
Other current assets						10,707
Property and equipment, net of accumulated depreciation and amortization						44,336
Goodwill						71,508
Purchased software licenses, net of accumulated amortization						3,943
Other assets, net						3,173
Assets from discontinued operations						172,172
Current installments of long-term debt						653
Trade accounts payable						8,857
Accrued expenses		2,728		2,728		7,480
Deferred revenue						3,658
Long-term debt						6,684
Deferred income taxes						22,716
Other liabilities						6,377
Liabilities from discontinued operations		2,728		2,728		56,425
Discontinued Operation, Continuing Involvement [Abstract]
Cash inflows included in the statements of cash flows		2,000		2,700
Cash outflows included in the statements of cash flows		2,400		2,500
ITO | Loss from continuing operations
Discontinued Operation, Continuing Involvement [Abstract]
Revenues resulting from continued involvement with disposal group		1,800		2,900
Expenses resulting from continued involvement with disposal group		1,800		3,000
ITO | Credit Agreement
DIVESTITURES
Proceeds from sale utilized to repay outstanding indebtedness	$ 55,000
Allocated interest expense				400
ITO | Maximum | Credit Agreement
DIVESTITURES
Maximum amount of common stock that may be repurchased		100,000		100,000
U.K. call center operation
Earnings (loss) from discontinued operations
Revenues			1,250		8,490
Operating expenses:
Operating expenses, excluding loss on sale of discontinued operations		450	1,568	450	8,513
Loss (gain) on sale of discontinued operations					1,875
Earnings (loss) from discontinued operations before income taxes		(450)	(318)	(450)	(1,898)
Gain on sale of discontinued operations					(1,875)
Earnings (loss) from discontinued operations, net of tax		(450)	$ (318)	(450)	$ (1,898)
Carrying amounts of the major classes of assets and liabilities
Trade accounts receivable, net						112
Assets from discontinued operations						112
Other accrued expenses		1,337		1,337		1,008
Liabilities from discontinued operations		$ 1,337		$ 1,337		$ 1,008