Income Taxes	9 Months Ended
Sep. 30, 2017
Income Tax Disclosure [Abstract]
Income Tax Disclosure	Income Taxes For the three months ended September 30, 2017, income tax expense of $2.0 million primarily represented the U.S. federal and state income tax provision. For the nine months ended September 30, 2017, income tax expense of $2.4 million included a U.S. federal and state income tax provision, partially offset by certain tax benefits associated with: a) stock-based compensation arrangements, as described further in Note 1 in these Notes to the Condensed Consolidated Financial Statements, of approximately $0.4 million; and b) the resolution of a previously reserved uncertain tax position of approximately $0.5 million. For the three months ended September 30, 2016, income tax expense of $1.1 million primarily represented of the U.S. federal and state income tax provision. For the nine months ended September 30, 2016, income tax expense of $3.9 million included a $3.9 million U.S. federal and state and foreign income tax provision, partially offset by a $1.1 million tax benefit resulting from the resolution of certain previously reserved uncertain tax positions.

Income Taxes

9 Months Ended

Sep. 30, 2017

Income Taxes

For the three months ended September 30, 2017, income tax expense of $2.0 million primarily represented the U.S. federal and state income tax provision. For the nine months ended September 30, 2017, income tax expense of $2.4 million included a U.S. federal and state income tax provision, partially offset by certain tax benefits associated with: a) stock-based compensation arrangements, as described further in Note 1 in these Notes to the Condensed Consolidated Financial Statements, of approximately $0.4 million; and b) the resolution of a previously reserved uncertain tax position of approximately $0.5 million.

For the three months ended September 30, 2016, income tax expense of $1.1 million primarily represented of the U.S. federal and state income tax provision. For the nine months ended September 30, 2016, income tax expense of $3.9 million included a $3.9 million U.S. federal and state and foreign income tax provision, partially offset by a $1.1 million tax benefit resulting from the resolution of certain previously reserved uncertain tax positions.