Debt	9 Months Ended
Sep. 30, 2018
Debt Disclosure [Abstract]
Debt	Debt Credit Agreement On February 15, 2018 (the "Effective Date"), the Company entered into Amendment No. 1 (the "Amendment") to its Credit Agreement, dated as of June 1, 2017, with Morgan Stanley Senior Funding, Inc., as administrative agent and the lenders from time to time party thereto (the Credit Agreement as amended by the Amendment is hereinafter referred to as the "Credit Agreement"). The Amendment provided commitments for an additional $105.0 million of term loans ("Additional Term Loans") which were subject to, among other customary conditions, the substantially concurrent consummation of the SGA Acquisition. On July 2, 2018, the Company borrowed the $105.0 million of additional term loans and used the proceeds, in combination with balance sheet resources, to fund the Transaction. The applicable margin on amounts outstanding under the Credit Agreement, commencing as of the Effective Date, is 2.50%, in the case of LIBOR-based loans, and 1.50% in the case of alternate base rate loans, in each case subject to a 25 basis point reduction based on the secured net leverage ratio (as defined in the Credit Agreement) of the Company as of the last day of the preceding fiscal quarter being not greater than 1.00 to 1.00, as reflected in certain financial reports required under the Credit Agreement. The Additional Term Loans were subject to a delayed draw fee accruing for the period (i) from the date which is 31 days after the Effective Date to the date which is 60 days after the Effective Date, at 1.25% per annum and (ii) thereafter, at 2.50% per annum until the funding of the Additional Term Loans on July 2, 2018. The Credit Agreement includes a financial maintenance covenant that the Company will not permit the Total Net Leverage Ratio to exceed 2.50:1.00 as of the last day of any fiscal quarter, provided that this covenant will apply only if on such day the aggregate principal amount of outstanding revolving loans and letters of credit exceeds 30% of the aggregate revolving commitments as of such day. At September 30, 2018, $351.5 million was outstanding under the Company's term loan maturing June 1, 2024 (the "Term Loan") and no amounts were outstanding under the Company's $100.0 million revolving credit facility.

Debt

Credit Agreement

On February 15, 2018 (the "Effective Date"), the Company entered into Amendment No. 1 (the "Amendment") to its Credit Agreement, dated as of June 1, 2017, with Morgan Stanley Senior Funding, Inc., as administrative agent and the lenders from time to time party thereto (the Credit Agreement as amended by the Amendment is hereinafter referred to as the "Credit Agreement"). The Amendment provided commitments for an additional $105.0 million of term loans ("Additional Term Loans") which were subject to, among other customary conditions, the substantially concurrent consummation of the SGA Acquisition. On July 2, 2018, the Company borrowed the $105.0 million of additional term loans and used the proceeds, in combination with balance sheet resources, to fund the Transaction.

The applicable margin on amounts outstanding under the Credit Agreement, commencing as of the Effective Date, is 2.50%, in the case of LIBOR-based loans, and 1.50% in the case of alternate base rate loans, in each case subject to a 25 basis point reduction based on the secured net leverage ratio (as defined in the Credit Agreement) of the Company as of the last day of the preceding fiscal quarter being not greater than 1.00 to 1.00, as reflected in certain financial reports required under the Credit Agreement. The Additional Term Loans were subject to a delayed draw fee accruing for the period (i) from the date which is 31 days after the Effective Date to the date which is 60 days after the Effective Date, at 1.25% per annum and (ii) thereafter, at 2.50% per annum until the funding of the Additional Term Loans on July 2, 2018.

The Credit Agreement includes a financial maintenance covenant that the Company will not permit the Total Net Leverage Ratio to exceed 2.50:1.00 as of the last day of any fiscal quarter, provided that this covenant will apply only if on such day the aggregate principal amount of outstanding revolving loans and letters of credit exceeds 30% of the aggregate revolving commitments as of such day.

At September 30, 2018, $351.5 million was outstanding under the Company's term loan maturing June 1, 2024 (the "Term Loan") and no amounts were outstanding under the Company's $100.0 million revolving credit facility.