Stock-Based Compensation Additional Information (Detail) - USD ($)
$ in Thousands |
|
|
3 Months Ended |
12 Months Ended |
|
May. 04, 2013 |
Mar. 04, 2013 |
Mar. 31, 2016 |
Mar. 31, 2015 |
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
Jul. 27, 2015 |
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
|
|
|
|
| Grants of ISO and non-qualified stock options (in shares) |
|
|
0
|
|
110,825
|
|
|
|
| Granted, in shares |
|
|
|
|
46,750
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value |
|
|
|
|
$ 5,500
|
$ 300
|
$ 3,400
|
|
| Tax Benefit from exercise of stock options, financing activities |
|
|
$ 3
|
$ 0
|
$ 1,536
|
$ 0
|
$ 0
|
|
| Selling, general and administrative expenses |
|
|
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
|
|
|
|
| Stock-based compensation costs charged to operations |
|
|
$ 400
|
$ 400
|
|
|
|
|
| Amended Plan |
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|
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
|
|
|
|
| Increase in the maximum number of shares available under the Plan |
210,000
|
210,000
|
|
|
|
|
|
|
| New maximum number of shares available under the Plan |
14,242,061
|
14,242,061
|
|
|
|
|
|
|
| Number of shares reserved under the Plan |
|
|
5,230,642
|
|
5,230,642
|
|
|
|
| Maximum number of shares available for grant under the Plan |
|
|
42,446
|
|
13,419
|
|
|
|
| Grants of ISO and non-qualified stock options (in shares) |
|
|
|
|
103,950
|
|
|
|
| 2015 Plan |
|
|
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
|
|
|
|
| New maximum number of shares available under the Plan |
|
|
|
|
|
|
|
8,400,000
|
| Maximum number of shares available for grant under the Plan |
|
|
8,346,375
|
|
8,346,375
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Granted |
|
|
|
|
46,750
|
|
|
|
| Grants of ISO and non-qualified stock options (in shares) |
|
|
|
|
6,875
|
|
|
|
| Granted, in shares |
|
|
|
|
46,750
|
|
|
|
| Director |
|
|
|
|
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
|
|
|
|
|
|
|
|
| Granted, in shares |
|
|
|
|
46,750
|
|
|
|
| Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value |
|
|
|
|
$ 900
|
|
|
|