Long Term Debt (Parenthetical) (Detail) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2015 |
Aug. 28, 2015 |
|
| Term Loan [Member] | ||
| Debt Instrument [Line Items] | ||
| Principal amount | $ 60.0 | $ 27.0 |
| Maturity date | Oct. 26, 2017 | |
| Debt Instrument Periodic Payment Principal | $ 3.0 | |
| Revolving Credit Facilities [Member] | ||
| Debt Instrument [Line Items] | ||
| Principal amount | $ 120.0 | |
| Maturity date | Oct. 26, 2017 | |
| Second Lien Credit Agreement Term Loan [Member] | ||
| Debt Instrument [Line Items] | ||
| Principal amount | $ 70.0 | $ 70.0 |
| Maturity date | Jul. 28, 2020 | |
| One Hundred Million Term Loan [Member] | ||
| Debt Instrument [Line Items] | ||
| Principal amount | $ 100.0 | |
| Eurodollar Rate plus the applicable percentage | 2.42% | |
| Maturity date | Aug. 28, 2020 |