Subsequent Events - Narrative (Details) - Subsequent Event $ / shares in Units, $ in Millions |
Apr. 14, 2015
USD ($)
$ / shares
shares
|
|---|---|
| Subsequent Event [Line Items] | |
| Issuance of common shares (in shares) | shares | 23,000,000.0 |
| Price per share (in USD per share) | $ / shares | $ 11.85 |
| Aggregate gross proceeds from issuance of common stock | $ | $ 272.6 |
| Aggregate net sales proceeds from Issuance of common stock | $ | $ 268.9 |
| Underwriter Option | |
| Subsequent Event [Line Items] | |
| Issuance of common shares (in shares) | shares | 3,000,000.0 |