|
Consolidated Balance Sheets (Parenthetical) (USD $)
In Thousands, except Share data, unless otherwise specified |
Mar. 31, 2014
|
Dec. 31, 2013
|
|---|---|---|
| Property, plant and equipment, accumulated depreciation | $ 198,967 | $ 179,778 |
| Deferred financing costs, accumulated amortization | $ 17,570 | $ 16,225 |
|
Class A Common Stock [Member]
|
||
| Common stock, par value | $ 0.01 | $ 0.01 |
| Common stock, shares authorized | 500,000,000 | 500,000,000 |
| Common stock, shares issued | 35,703,134 | 35,530,786 |
| Common stock, shares outstanding | 35,703,134 | 35,530,786 |
|
Class B Common Stock [Member]
|
||
| Common stock, par value | $ 0.01 | $ 0.01 |
| Common stock, shares authorized | 20,000,000 | 20,000,000 |
| Common stock, shares issued | 15,555,000 | 15,555,000 |
| Common stock, shares outstanding | 15,555,000 | 15,555,000 |