Bank Loan Facilities	9 Months Ended
Sep. 30, 2017
Debt Disclosure [Abstract]
Bank Loan Facilities	Bank Loan Facilities At September 30, 2017, the Company had a $90.0 million revolving bank loan facility to provide for working capital needs and for other general corporate purposes. During 2017, the borrowing capacity under the revolving loan facility was increased by $20.0 million to $90.0 million. The maturity date of the revolving loan facility was April 30, 2018. Interest on the borrowings was based on the higher of 3.50% or the U.S. Prime Rate (4.25% at September 30, 2017) and was payable monthly. The weighted average daily borrowings outstanding under the revolving bank loan facility were approximately $64.8 million and $52.2 million for the nine months ended September 30, 2017 and 2016, respectively. The weighted average interest rate related to the bank loan facility was 4.04% and 3.50% for the nine months ended September 30, 2017 and 2016, respectively. In connection with the acquisition of Cogent in April 2015, the Company borrowed $45.0 million, which was comprised of two bank term loan facilities (the "Term Loan Facilities"), each in an original principal amount of $22.5 million. One Term Loan Facility was paid in full in advance of its maturity date in April 2016. The other Term Loan Facility had a maturity date of April 30, 2018 (the "Three Year Facility"), was payable in four equal semi-annual installments beginning on October 31, 2016 and bore interest at the Prime Rate plus one and one-quarter percent (1.25%) per annum, which interest rate was to be reduced to the Prime Rate plus three-quarters of one percent (0.75%) per annum when the amount outstanding on the Three Year Facility was $7.5 million or less. During 2017, the Company repaid the outstanding balance of the term loan of $16.9 million, including $11.3 million in the third quarter, in full satisfaction of the remaining tranche of the term loan facility used to fund the acquisition of Cogent. There were no prepayment penalties for the early repayment of the Term Loan Facilities and principal amounts repaid cannot be reborrowed. The interest rate applicable to the Term Loan Facilities can never be less than four percent (4.00%) per annum. The weighted average interest rate related to the Term Loan Facilities was 5.17% and 4.67% for the nine months ended September 30, 2017 and 2016, respectively. The bank loan facilities were provided by a U.S. banking institution and secured by any cash distributed in respect of the Company’s investment in the U.S. based merchant banking funds and cash distributions from G&Co, CP LP and GCI and advisory fees receivable from G&Co. In addition, the bank loan facilities had a prohibition on the incurrence of additional indebtedness without the prior approval of the lenders and the Company was required to comply with certain financial and liquidity covenants. At September 30, 2017, the Company was compliant with all bank loan covenants. On September 25, 2017, the Company announced plans for a leveraged recapitalization, which included plans to borrow $300 million of term loans, which was subsequently increased to $350 million, and to use the net proceeds to repay the amount outstanding under the existing bank loan facilities and repurchase up to $235 million of the Company's common stock, which was subsequently increased to $285 million of the Company's common stock. In accordance with these plans, the Company elected to repay in full all amounts outstanding and terminate its commitments under the Three Year Facility on September 29, 2017 with the proceeds from a drawing on its revolving bank loan facility. See "Note 12 — Subsequent Events".

Bank Loan Facilities

At September 30, 2017, the Company had a $90.0 million revolving bank loan facility to provide for working capital needs and for other general corporate purposes. During 2017, the borrowing capacity under the revolving loan facility was increased by $20.0 million to $90.0 million. The maturity date of the revolving loan facility was April 30, 2018. Interest on the borrowings was based on the higher of 3.50% or the U.S. Prime Rate (4.25% at September 30, 2017) and was payable monthly. The weighted average daily borrowings outstanding under the revolving bank loan facility were approximately $64.8 million and $52.2 million for the nine months ended September 30, 2017 and 2016, respectively. The weighted average interest rate related to the bank loan facility was 4.04% and 3.50% for the nine months ended September 30, 2017 and 2016, respectively.

In connection with the acquisition of Cogent in April 2015, the Company borrowed $45.0 million, which was comprised of two bank term loan facilities (the "Term Loan Facilities"), each in an original principal amount of $22.5 million. One Term Loan Facility was paid in full in advance of its maturity date in April 2016. The other Term Loan Facility had a maturity date of April 30, 2018 (the "Three Year Facility"), was payable in four equal semi-annual installments beginning on October 31, 2016 and bore interest at the Prime Rate plus one and one-quarter percent (1.25%) per annum, which interest rate was to be reduced to the Prime Rate plus three-quarters of one percent (0.75%) per annum when the amount outstanding on the Three Year Facility was $7.5 million or less. During 2017, the Company repaid the outstanding balance of the term loan of $16.9 million, including $11.3 million in the third quarter, in full satisfaction of the remaining tranche of the term loan facility used to fund the acquisition of Cogent. There were no prepayment penalties for the early repayment of the Term Loan Facilities and principal amounts repaid cannot be reborrowed. The interest rate applicable to the Term Loan Facilities can never be less than four percent (4.00%) per annum. The weighted average interest rate related to the Term Loan Facilities was 5.17% and 4.67% for the nine months ended September 30, 2017 and 2016, respectively.

The bank loan facilities were provided by a U.S. banking institution and secured by any cash distributed in respect of the Company’s investment in the U.S. based merchant banking funds and cash distributions from G&Co, CP LP and GCI and advisory fees receivable from G&Co. In addition, the bank loan facilities had a prohibition on the incurrence of additional indebtedness without the prior approval of the lenders and the Company was required to comply with certain financial and liquidity covenants. At September 30, 2017, the Company was compliant with all bank loan covenants.

On September 25, 2017, the Company announced plans for a leveraged recapitalization, which included plans to borrow $300 million of term loans, which was subsequently increased to $350 million, and to use the net proceeds to repay the amount outstanding under the existing bank loan facilities and repurchase up to $235 million of the Company's common stock, which was subsequently increased to $285 million of the Company's common stock. In accordance with these plans, the Company elected to repay in full all amounts outstanding and terminate its commitments under the Three Year Facility on September 29, 2017 with the proceeds from a drawing on its revolving bank loan facility. See "Note 12 — Subsequent Events".