Derivatives and Hedging Activities	9 Months Ended
Sep. 30, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives and Hedging Activities	Derivatives and Hedging Activities The Company uses derivatives to manage selected foreign exchange exposures for its investments in foreign subsidiaries. In general, the types of risks hedged are those relating to the variability of future earnings and cash flows caused by movements in foreign currency exchange rates and interest rates. The Company documents its risk management strategy and hedge effectiveness at the inception of and during the term of each hedge. Net Investment Hedge As of September 30, 2017, and December 31, 2016, the amount of notional foreign exchange contracts outstanding was approximately $88.0 million. There is no significant credit risk associated with the potential failure of any counterparty to perform under the terms of any derivative financial instrument. The net investment hedge is measured at fair value within the consolidated balance sheet either as an asset or a liability. At September 30, 2017, the fair value of the derivative instrument was $2.7 million and was recorded in other long-term liabilities. At December 31, 2016, the fair value of the derivative instrument was $2.4 million and was recorded in non-current other assets. The Company recognized a loss of $1.6 million and $3.0 million, net of taxes of $1.0 million and $1.9 million, respectively, for the three and nine months ended September 30, 2017, respectively, recorded in comprehensive income (loss) related to the net investment hedge. The Company recognized a gain of $0.7 million, net of taxes of $0.3 million, for the three and nine months ended September 30, 2016, recorded in comprehensive income (loss) related to the net investment hedge. The Company recorded a loss of $111,000 and $205,000 for the three and nine months ended September 30, 2017, respectively, in other income, net, related to the ineffective portion of the net investment hedge. The Company recorded a gain of $48,000 for the three and nine months ended September 30, 2016 in other income, net, related to the ineffective portion of the net investment hedge. Embedded Derivative The Company has the option to prepay its $575.0 million Senior Secured Notes due 2021 (the "Notes") at any time prior to August 15, 2018 at a price equal to 100% of the principal amount, plus the applicable premium and any accrued and unpaid interest. In addition, prior to August 15, 2018 and in the event of equity offerings, the Company has the option to prepay up to 40% of the Notes using the proceeds from such offering within 180 days from closing of the offering. However, 50% of the principal needs to remain outstanding. The redemption price is determined at 108.25% plus accrued and unpaid interest. On or after August 15, 2018, the Company may redeem the Notes subject to a redemption price equal to a percentage of the principal amount of the Notes, with such percentage set forth in the indenture governing the Notes, plus accrued and unpaid interest. The optional prepayment subsequent to an equity offering constitutes an embedded derivative and is bifurcated from the debt host and accounted for separately. The embedded derivative is recorded at fair value at inception and on an ongoing basis, with any changes in fair value from inception recorded in earnings. The fair value of the embedded derivative at September 30, 2017 and December 31, 2016 was $0 and $13.2 million, respectively. The fair value of the embedded derivative at September 30, 2017 was $0 due to a minimal probability of an equity offering occurring where the proceeds are used to pay down the Notes prior to the expiration of the optional prepayment time period on August 15, 2018. At December 31, 2016, the fair value of the embedded derivative was included in the balance sheet as non-current other liabilities. The change in fair value in the amount of $0 and $13.2 million for the three and nine months ended September 30, 2017, respectively, was included in the statements of operations in other income, net. The change in fair value in the amount of $100,000 for the three and nine months ended September 30, 2016 was included in the statement of operations in other income, net.

Derivatives and Hedging Activities

The Company uses derivatives to manage selected foreign exchange exposures for its investments in foreign subsidiaries. In general, the types of risks hedged are those relating to the variability of future earnings and cash flows caused by movements in foreign currency exchange rates and interest rates. The Company documents its risk management strategy and hedge effectiveness at the inception of and during the term of each hedge.

Net Investment Hedge

As of September 30, 2017, and December 31, 2016, the amount of notional foreign exchange contracts outstanding was approximately $88.0 million. There is no significant credit risk associated with the potential failure of any counterparty to perform under the terms of any derivative financial instrument.

The net investment hedge is measured at fair value within the consolidated balance sheet either as an asset or a liability. At September 30, 2017, the fair value of the derivative instrument was $2.7 million and was recorded in other long-term liabilities. At December 31, 2016, the fair value of the derivative instrument was $2.4 million and was recorded in non-current other assets.

The Company recognized a loss of $1.6 million and $3.0 million, net of taxes of $1.0 million and $1.9 million, respectively, for the three and nine months ended September 30, 2017, respectively, recorded in comprehensive income (loss) related to the net investment hedge. The Company recognized a gain of $0.7 million, net of taxes of $0.3 million, for the three and nine months ended September 30, 2016, recorded in comprehensive income (loss) related to the net investment hedge.

The Company recorded a loss of $111,000 and $205,000 for the three and nine months ended September 30, 2017, respectively, in other income, net, related to the ineffective portion of the net investment hedge. The Company recorded a gain of $48,000 for the three and nine months ended September 30, 2016 in other income, net, related to the ineffective portion of the net investment hedge.

Embedded Derivative

The Company has the option to prepay its $575.0 million Senior Secured Notes due 2021 (the "Notes") at any time prior to August 15, 2018 at a price equal to 100% of the principal amount, plus the applicable premium and any accrued and unpaid interest.

In addition, prior to August 15, 2018 and in the event of equity offerings, the Company has the option to prepay up to 40% of the Notes using the proceeds from such offering within 180 days from closing of the offering. However, 50% of the principal needs to remain outstanding. The redemption price is determined at 108.25% plus accrued and unpaid interest.

On or after August 15, 2018, the Company may redeem the Notes subject to a redemption price equal to a percentage of the principal amount of the Notes, with such percentage set forth in the indenture governing the Notes, plus accrued and unpaid interest.

The optional prepayment subsequent to an equity offering constitutes an embedded derivative and is bifurcated from the debt host and accounted for separately. The embedded derivative is recorded at fair value at inception and on an ongoing basis, with any changes in fair value from inception recorded in earnings. The fair value of the embedded derivative at September 30, 2017 and December 31, 2016 was $0 and $13.2 million, respectively. The fair value of the embedded derivative at September 30, 2017 was $0 due to a minimal probability of an equity offering occurring where the proceeds are used to pay down the Notes prior to the expiration of the optional prepayment time period on August 15, 2018. At December 31, 2016, the fair value of the embedded derivative was included in the balance sheet as non-current other liabilities.

The change in fair value in the amount of $0 and $13.2 million for the three and nine months ended September 30, 2017, respectively, was included in the statements of operations in other income, net. The change in fair value in the amount of $100,000 for the three and nine months ended September 30, 2016 was included in the statement of operations in other income, net.