STOCKHOLDERS' EQUITY: (Tables)

12 Months Ended

Mar. 31, 2018

Schedule of option activity

Stock option activity during the year ended March 31, 2018 was:

					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, 2017	3,033,071		$	13.14
Performance units converted to options	299,641		$	21.32
Exercised	(661,931	)	$	13.89		$	8,568
Forfeited or cancelled	(105,494	)	$	20.25
Outstanding at March 31, 2018	2,565,287		$	13.61	5.5	$	23,538
Exercisable at March 31, 2018	1,995,309		$	13.60	5.0	$	18,382

Summary of stock options outstanding and exercisable

A summary of stock options outstanding and exercisable as of March 31, 2018 was:

					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
$	0.61	—	$	9.99	619,749	6.1 years	$	1.68	434,021	$	1.79
$	10.00	—	$	19.99	1,229,616	4.7 years	$	14.96	1,043,930	$	14.47
$	20.00	—	$	24.99	696,370	6.6 years	$	21.31	497,806	$	21.32
$	25.00	—	$	32.85	19,552	5.6 years	$	32.85	19,552	$	32.85
					2,565,287	5.5 years	$	13.61	1,995,309	$	13.60

Schedule of stock appreciation right (SAR) activity

SAR activity during the year ended March 31, 2018 was: 

					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, 2017	245,404		$	40.00	—
Forfeited or cancelled	(245,404	)	$	40.00
Outstanding at March 31, 2018	—		$	—	—	$	—
Exercisable at March 31, 2018	—		$	—	—	$	—

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

Non-vested time-vesting restricted stock units activity during the year ended March 31, 2018 was:

			Weighted-average		Weighted-average
			fair value per		remaining
	Number		share at grant		contractual
	of shares		date		term (in years)
Outstanding at March 31, 2017	3,307,577		$	22.57	2.45
Granted	1,794,915		$	26.22
Vested	(1,236,644	)	$	22.58
Forfeited or cancelled	(416,847	)	$	23.54
Outstanding at March 31, 2018	3,449,001		$	24.35	2.32

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

Non-vested performance-based restricted stock units activity during the year ended March 31, 2018 was:

			Weighted-average		Weighted-average
			fair value per		remaining
	Number		share at		contractual
	of shares		grant date		term (in years)
Outstanding at March 31, 2017	732,711		$	20.89	1.13
Granted	425,880		$	26.24
Additional earned performance shares	359,206		$	18.96
Vested	(781,622	)	$	19.00
Forfeited or cancelled	(53,412	)	$	22.64
Outstanding at March 31, 2018	682,763		$	25.23	1.54

Schedule of other performance unit activity

Performance stock option unit activity during the year ended March 31, 2018 was:

					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, 2017	555,123		$	21.41	2.1
Performance units converted to options	(183,322	)	$	21.41
Forfeited or cancelled	(42,397	)	$	21.32
Outstanding at March 31, 2018	329,404		$	21.42	1.6	$	446
Exercisable at March 31, 2018	—		$	—	—	$	—

Other performance unit activity during the year ended March 31, 2018 was:

			Weighted average		Weighted-average
			fair value per		remaining
	Number		share at		contractual
	of shares		grant date		term (in years)
Outstanding at March 31, 2017	597,193		$	4.14	1.30
Vested	(24,573	)	$	2.94
Forfeited or cancelled	(461,509	)	$	3.92
Outstanding at March 31, 2018	111,111		$	5.33	—

Schedule of accumulated balances for each component of other comprehensive income

The accumulated balances for each component of other comprehensive income was (dollars in thousands):

	March 31,		March 31,
	2018		2017
Foreign currency translation	$	10,767	$	7,999
	$	10,767	$	7,999