Intangible Assets - Narrative (Details) - USD ($) $ in Millions |
3 Months Ended | 12 Months Ended | ||
---|---|---|---|---|
Dec. 31, 2014 |
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
|
Finite-Lived Intangible Assets [Line Items] | ||||
Weighted-average useful life | 8 years 1 month 6 days | |||
Amortization expense of intangible assets | $ 6.9 | $ 6.2 | $ 7.2 | |
Impairment charge for trade name | $ 0.9 | |||
Customer relationships | ||||
Finite-Lived Intangible Assets [Line Items] | ||||
Weighted-average useful life | 15 years | |||
Technology use | ||||
Finite-Lived Intangible Assets [Line Items] | ||||
Weighted-average useful life | 15 years | |||
Capitalized software | ||||
Finite-Lived Intangible Assets [Line Items] | ||||
Weighted-average useful life | 6 years 3 months 18 days |