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Quarterly Data (Unaudited ) - Summarized Quarterly Financial Information (Detail) (USD $)
In Thousands, except Share data, unless otherwise specified |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
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Dec. 31, 2013
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Sep. 30, 2013
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Jun. 30, 2013
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Mar. 31, 2013
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Dec. 31, 2012
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Sep. 30, 2012
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Jun. 30, 2012
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Mar. 31, 2012
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Dec. 31, 2013
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Dec. 31, 2012
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Dec. 31, 2011
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| Quarterly Financial Information Disclosure [Abstract] | |||||||||||
| Total revenue | $ 92,554 | $ 85,379 | $ 79,437 | $ 70,754 | $ 63,523 | $ 57,840 | $ 57,879 | $ 54,273 | $ 328,124 | $ 233,515 | $ 160,156 |
| Operating loss | (14,407) | (10,898) | (9,062) | (10,300) | (9,622) | (8,632) | (4,875) | (4,308) | (44,667) | (27,437) | (33,824) |
| Net income (loss) | (22,105) | (18,718) | (55,989) | (14,477) | (19,104) | (13,044) | 2,900 | (3,466) | (111,289) | (32,714) | 23,615 |
| Net loss to attributable to common stock | $ (22,105) | $ (18,718) | $ (72,578) | $ (32,450) | $ (35,961) | $ (29,010) | $ (13,089) | $ (17,580) | $ (145,851) | $ (95,640) | $ (17,897) |
| Net loss attributable to common stock per share - basic and diluted | $ (0.26) | $ (0.22) | $ (4.98) | $ (4.77) | $ (5.29) | $ (4.27) | $ (1.93) | $ (2.59) | $ (3.05) | $ (14.07) | $ (2.63) |
| Weighted average number of shares - basic and diluted | 84,230 | 84,097 | 14,585 | 6,802 | 6,798 | 6,798 | 6,798 | 6,798 | 47,832,000 | 6,798,000 | 6,798,000 |