DISCONTINUED OPERATIONS: - Summary Results of Operations and Carrying Amounts of Major Classes of Assets and Liabilities of ITO (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Operating expenses:
Income taxes									$ 3,598	$ 11,973	$ 17,587
Earnings (loss) from discontinued operations, net of tax	$ 111	$ (971)	$ 12,068	$ 4,143	$ 2,998	$ 3,819	$ 5,557	$ 3,137	15,351	15,511	26,143
Carrying amounts of the major classes of assets and liabilities
Assets from discontinued operations					172,284					172,284
Liabilities from discontinued operations					57,433					57,433
ITO | Discontinued operations, held-for-sale or disposed of by sale
Major classes of line items constituting earnings from discontinued operations, net of tax
Revenues									69,410
Cost of revenue									50,837
Gross profit									18,573
Operating expenses:
Sales and marketing									1,192
General and administrative									6,053
Gain on sale of discontinued operations									(9,349)
Gains, losses and other items, net									367
Total operating expenses									(1,737)
Income from discontinued operations									20,310
Interest expense									(681)
Other, net									(230)
Earnings (loss) from discontinued operations before income taxes									19,399
Income taxes									3,598
Earnings (loss) from discontinued operations, net of tax									$ 15,801
ITO | Discontinued operations held-for-sale
Major classes of line items constituting earnings from discontinued operations, net of tax
Revenues										215,148	257,125
Cost of revenue										167,524	186,699
Gross profit										47,624	70,426
Operating expenses:
Sales and marketing										2,771	2,015
General and administrative										10,736	14,749
Gains, losses and other items, net										2,037	4,746
Total operating expenses										15,544	21,510
Income from discontinued operations										32,080	48,916
Interest expense										(2,378)	(3,000)
Other, net										(334)	3
Earnings (loss) from discontinued operations before income taxes										29,368	45,919
Income taxes										11,973	17,587
Earnings (loss) from discontinued operations, net of tax										17,395	$ 28,332
Carrying amounts of the major classes of assets and liabilities
Trade accounts receivable, net					35,743					35,743
Deferred income taxes					2,762					2,762
Other current assets					10,707					10,707
Property and equipment, net of accumulated depreciation and amortization					44,336					44,336
Goodwill					71,508					71,508
Purchased software licenses, net of accumulated amortization					3,943					3,943
Other assets, net					3,173					3,173
Assets from discontinued operations					172,172					172,172
Current installments of long-term debt					653					653
Trade accounts payable					8,857					8,857
Accrued expenses					7,480					7,480
Deferred revenue					3,658					3,658
Long-term debt					6,684					6,684
Deferred income taxes					22,716					22,716
Other liabilities					6,377					6,377
Liabilities from discontinued operations					$ 56,425					$ 56,425