|
Segment Reporting - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | ||
|---|---|---|---|
|
Mar. 31, 2015
Segment
|
Mar. 31, 2014
|
Dec. 31, 2014
|
|
| Segment Reporting Information [Line Items] | |||
| Number of reportable segments | 2 | ||
| Revenues | $ 132,629 | $ 102,404 | |
| Assets | 2,030,944 | 2,103,174 | |
| United States | |||
| Segment Reporting Information [Line Items] | |||
| Revenues | 110,500 | 81,100 | |
| Assets | $ 1,700,000 | $ 1,700,000 | |