SHARE-BASED COMPENSATION: (Tables)

9 Months Ended

Dec. 31, 2016

Schedule of option activity

				Weighted-‑average
		Weighted-average		remaining	Aggregate
	Number of	exercise price		contractual term	Intrinsic value
	shares	per share		(in years)	(in thousands)
Outstanding at March 31, 2016	3,604,102	$	14.52
Arbor and Circulate replacement stock options	358,936	$	1.48
Exercised	(566,092)	$	13.73		$	5,785
Forfeited or cancelled	(67,513)	$	13.90
Outstanding at December 31, 2016	3,329,433	$	13.26	5.3	$	45,208
Exercisable at December 31, 2016	2,369,091	$	14.15	4.4	$	30,056

Summary of stock options outstanding and exercisable

					Options outstanding					Options exercisable
Range of						Weighted-average		Weighted-average			Weighted-average
exercise price					Options	remaining		exercise price		Options	exercise price
per share					outstanding	contractual life		per share		exercisable	per share
$	0.85	-	$	9.99	906,395	6.5	years	$	1.68	459,760	$	1.71
$	10.00	-	$	19.99	1,580,005	5.1	years	$	15.21	1,270,848	$	14.60
$	20.00	-	$	24.99	823,481	4.4	years	$	21.78	623,820	$	21.97
$	25.00	-	$	32.85	19,552	6.9	years	$	32.85	14,663	$	32.85
					3,329,433	5.3	years	$	13.26	2,369,091	$	14.15

Schedule of stock appreciation right (SAR) activity

				Weighted-average
			Weighted-average	remaining		Aggregate
	Number		exercise price	contractual term		intrinsic value
	of shares		per share	(in years)		(in thousands)
Outstanding at March 31, 2016	245,404	$	40.00
Outstanding at December 31, 2016	245,404	$	40.00	0.2	$	—
Exercisable at December 31, 2016	—	$	—	—	$	—

Schedule of non-vested time-vesting restricted stock unit activity

Non-vested time-vesting restricted stock unit activity for the nine-month period ended December 31, 2016 was:

		Weighted average
		fair value per		Weighted-average
	Number	share at grant		remaining contractual
	of shares	date		term (in years)
Outstanding at March 31, 2016	2,279,895	$	19.69	2.12
Granted	2,107,608	$	23.77
Vested	(890,127)	$	20.18
Forfeited or cancelled	(167,408)	$	19.94
Outstanding at December 31, 2016	3,329,968	$	22.13	2.63

Schedule of non-vested performance-based restricted stock units activity

Non-vested performance-based restricted stock unit activity for the nine-month period ended December 31, 2016 was:

		Weighted average
		fair value per		Weighted-average
	Number	share at grant		remaining contractual
	of shares	date		term (in years)
Outstanding at March 31, 2016	516,818	$	18.62	1.67
Granted	254,419	$	24.66
Forfeited or cancelled	(28,950)	$	17.53
Outstanding at December 31, 2016	742,287	$	20.73	1.38

Schedule of other performance unit activity

		Weighted average
		fair value per		Weighted-average
	Number	share at grant		remaining contractual
	of shares	date		term (in years)
Outstanding at March 31, 2016	635,655	$	4.07	1.30
Forfeited or cancelled	(19,231)	$	2.94
Outstanding at December 31, 2016	616,424	$	4.10	0.55

Stock option

Schedule of stock appreciation right (SAR) activity

				Weighted-average
			Weighted-average	remaining		Aggregate
	Number		exercise price	contractual term		intrinsic value
	of shares		per share	(in years)		(in thousands)
Outstanding at March 31, 2016	—	$	—
Granted	633,604	$	21.40
Forfeited or cancelled	(24,677)	$	21.32
Outstanding at December 31, 2016	608,927	$	21.40	2.4	$	3,285
Exercisable at December 31, 2016	—	$	—	—	$	—