Consolidated and Combined Balance Sheets (Parenthetical) - USD ($) $ in Millions |
Dec. 31, 2016 |
Dec. 31, 2015 |
|---|---|---|
| Statement Of Financial Position [Abstract] | ||
| Receivables, allowance for doubtful accounts | $ 6.4 | $ 4.6 |
| Preferred stock, par value | $ 0.01 | $ 0.01 |
| Preferred stock, authorized | 1,000,000 | 1,000,000 |
| Preferred stock, Issued | 0 | 0 |
| Common stock, par value | $ 0.01 | $ 0.01 |
| Common stock, Authorized | 65,000,000 | 65,000,000 |
| Common stock, Issued | 32,600,000 |