Senior Subordinated Notes Payable - Additional Information (Detail) - USD ($)
$ in Thousands |
1 Months Ended |
|
|
Apr. 06, 2015 |
Mar. 31, 2011 |
Apr. 30, 2016 |
Jan. 30, 2016 |
| Senior Secured Notes [Line Items] |
|
|
|
|
| Senior notes amount outstanding |
|
|
$ 49,564
|
$ 49,528
|
| 7 7/8% Senior Subordinated Notes Due 2019 |
|
|
|
|
| Senior Secured Notes [Line Items] |
|
|
|
|
| Debt instrument face amount |
|
$ 150,000
|
|
|
| Debt instrument stated interest rate |
|
7.875%
|
|
|
| Debt instrument maturity date |
|
Apr. 01, 2019
|
|
|
| Proceeds from issuance of senior subordinated notes |
|
$ 146,500
|
|
|
| Debt instrument interest rate, effective percentage |
|
8.00%
|
|
|
| Payments on senior subordinated notes |
$ 100,000
|
|
|
|
| Redemption price for the senior subordinated notes |
103.938%
|
|
|
|
| Redemption date |
May 06, 2015
|
|
|
|
| Costs of early extinguishment of debt |
$ (5,100)
|
|
|
|
| Senior notes amount outstanding |
|
|
49,600
|
49,500
|
| Debt issuance cost |
|
|
$ 400
|
$ 500
|
| 8 7/8% Senior Subordinated Notes Due 2013 |
|
|
|
|
| Senior Secured Notes [Line Items] |
|
|
|
|
| Debt instrument stated interest rate |
|
8.875%
|
|
|
| Debt instrument maturity date |
|
Sep. 15, 2013
|
|
|
| Retire senior subordinated notes |
|
$ 150,000
|
|
|