Acquisitions - Additional Information (Detail) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Feb. 09, 2015 |
Jun. 30, 2015 |
Jun. 30, 2015 |
Dec. 31, 2014 |
|
| Business Acquisition [Line Items] | ||||
| Business combination goodwill acquired | $ 141,090 | $ 141,090 | $ 139,774 | |
| Selling, General and Administrative Expense | ||||
| Business Acquisition [Line Items] | ||||
| Acquisition related costs | 6,300 | $ 11,600 | ||
| Timber Tech Texas, Inc. and its affiliates | ||||
| Business Acquisition [Line Items] | ||||
| Date of acquisition | Feb. 09, 2015 | |||
| Cash consideration for certain assets acquired | $ 5,800 | |||
| Business combination tangible assets acquired | 4,500 | |||
| Business combination goodwill acquired | $ 1,300 | |||
| Timber Tech Texas, Inc. and its affiliates | Selling, General and Administrative Expense | ||||
| Business Acquisition [Line Items] | ||||
| Acquisition related costs | $ 0 | $ 100 |