Derivatives	9 Months Ended
Sep. 30, 2016
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives	Derivatives When deemed appropriate, we use derivatives, primarily forward contracts, as a risk management tool to mitigate the potential impact of foreign currency exchange risk. At September 30, 2016, we did not have any derivatives outstanding. The total notional values of our foreign currency derivatives as of December 31, 2015 was $2.0 million. In 2016 and 2015, we did not have any derivatives designated as hedging instruments and all gains and losses resulting from changes in the fair value of derivative instruments were immediately recognized into earnings. At December 31, 2015, the fair value of our foreign currency contracts included in other assets on the consolidated balance sheet was $0.4 million. There was no impact from changes in the fair value of these foreign currency derivatives included in other operating expense for the three months ended September 30, 2016. The impact from changes in the fair value of these foreign currency derivatives included in other operating expense was $0.4 million for the nine months ended September 30, 2016. The impact from changes in the fair value of these foreign currency derivatives included in other operating expense was $0.3 million and $0.1 million for the three and nine months ended September 30, 2015. We consider the risk of counterparty default to be minimal.

Derivatives

9 Months Ended

Sep. 30, 2016

Derivative Instruments and Hedging Activities Disclosure [Abstract]

When deemed appropriate, we use derivatives, primarily forward contracts, as a risk management tool to mitigate the potential impact of foreign currency exchange risk. At September 30, 2016, we did not have any derivatives outstanding. The total notional values of our foreign currency derivatives as of December 31, 2015 was $2.0 million. In 2016 and 2015, we did not have any derivatives designated as hedging instruments and all gains and losses resulting from changes in the fair value of derivative instruments were immediately recognized into earnings. At December 31, 2015, the fair value of our foreign currency contracts included in other assets on the consolidated balance sheet was $0.4 million. There was no impact from changes in the fair value of these foreign currency derivatives included in other operating expense for the three months ended September 30, 2016. The impact from changes in the fair value of these foreign currency derivatives included in other operating expense was $0.4 million for the nine months ended September 30, 2016. The impact from changes in the fair value of these foreign currency derivatives included in other operating expense was $0.3 million and $0.1 million for the three and nine months ended September 30, 2015. We consider the risk of counterparty default to be minimal.