|
Intangible Assets (Detail) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | |
|---|---|---|
|
Dec. 31, 2013
|
Dec. 31, 2012
|
|
| Finite-Lived Intangible Assets [Line Items] | ||
| Gross Carrying Amount | $ 182,277 | $ 186,366 |
| Accumulated Amortization | (32,914) | (12,490) |
| Intangible Assets, Net | 149,363 | 173,876 |
| Remaining Useful Life | 13 years 4 months 24 days | 14 years 2 months 12 days |
|
Customer relationships
|
||
| Finite-Lived Intangible Assets [Line Items] | ||
| Gross Carrying Amount | 163,106 | 166,426 |
| Accumulated Amortization | (28,127) | (8,945) |
| Intangible Assets, Net | 134,979 | 157,481 |
| Remaining Useful Life | 13 years 7 months 6 days | 14 years 3 months 18 days |
|
Disposal permits
|
||
| Finite-Lived Intangible Assets [Line Items] | ||
| Gross Carrying Amount | 1,819 | 2,588 |
| Accumulated Amortization | (682) | (472) |
| Intangible Assets, Net | 1,137 | 2,116 |
| Remaining Useful Life | 7 years 2 months 12 days | 8 years 2 months 12 days |
|
Customer Contracts
|
||
| Finite-Lived Intangible Assets [Line Items] | ||
| Gross Carrying Amount | 17,352 | 17,352 |
| Accumulated Amortization | (4,105) | (3,073) |
| Intangible Assets, Net | $ 13,247 | $ 14,279 |
| Remaining Useful Life | 13 years | 14 years |