Share Based Awards (Tables)

3 Months Ended

Jun. 30, 2018

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Summary of Stock Option Activity

The following table summarizes the stock option transactions during the three months ended June 30, 2018:

				Weighted-		Weighted-
				Average		Average		Aggregate
				Exercise		Remaining		Intrinsic
Employee Stock Options Summary	Number of			Price		Contractual		Value
	Shares			per Share		Life (years)		(in thousands)
Outstanding, April 1, 2018		3,670,170		$	15.51		6.2	$	766
Granted		241,130		$	16.83		7.9
Exercised		(54,945	)	$	14.97		4.9	$	115
Forfeited/Canceled		(107,480	)	$	23.82		4.1
Expired		(2,400	)	$	28.15
Outstanding, June 30, 2018		3,746,475		$	15.36		6.2	$	17,480
Vested and expected to vest, June 30, 2018		3,338,148		$	15.46		6.1	$	15,442
Exercisable, June 30, 2018		1,175,270		$	17.21		4.8	$	4,648

Schedule of Assumptions Used in Black-Scholes Model to Estimate Fair Value of Stock Awards

We utilize the Black-Scholes valuation model for estimating the fair value of share-based compensation with the following assumptions:

	Three Months Ended June 30,
	2018	2017
Expected term	6.3 years	5.6  - 5.7 years
Expected volatility	36.8%	37.6% - 37.7%
Expected dividends	0.0%	0.0%
Risk-free rate	2.8%	1.9%

Summary of Stock Options Granted

During the three months ended June 30, 2018, a total of 241,130 options to purchase shares of common stock were granted under the Amended 2015 Plan at an exercise price equal to the market price of our common stock on the date of grant, as summarized below:

Option Grant Date	Number of Shares		Exercise Price		Vesting Terms (1)	Expiration
May 30, 2018		241,130	$	16.83	Four Years	June 1, 2026

⁽¹⁾ Options vest in equal annual installments on each grant anniversary date commencing one year following the date of grant.

Schedule of Employee Stock Options and Performance Based Awards by Non-vested Stock Options

Non-vested stock option award activity during the three months ended June 30, 2018 is summarized as follows:

				Weighted-
				Average
				Grant-Date
Non-Vested Stock Option Award Summary	Number of			Fair Value
	Shares			per Share
Outstanding, April 1, 2018		2,657,005		$	5.18
Granted		241,130			6.92
Vested		(265,150	)		5.02
Forfeited/Canceled		(61,780	)		5.38
Outstanding, June 30, 2018		2,571,205		$	5.35

Summary of Restricted Stock Awards Activity

Restricted stock awards activity during the three months ended June 30, 2018 is summarized as follows:

				Weighted-
				Average
				Grant-Date
Restricted Stock	Number of			Fair Value
	Shares			per Share
Outstanding, April 1, 2018		1,820,910		$	14.52
Granted		396,400			16.83
Vested		(258,943	)		14.69
Canceled		(178,581	)		14.32
Outstanding, June 30, 2018		1,779,786		$	15.02