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Other Investments	3 Months Ended
Other Investments	Mar. 31, 2019
Other Investments [Abstract]
Other Investments	Other Investments At March 31, 2019, the Company held $13.8 million in investments in certain limited partnerships that invest in various innovative companies in the health care and education-related technology fields. The Company has commitments to invest up to an additional $2.4 million across these partnerships through December 2027. The Company's investments range from 3%-5% of any partnership’s interest and are accounted for under the equity method. During the three months ended March 31, 2019, the Company made investments totaling $0.3 million and received cash distributions totaling $0.9 million related to these partnerships. Additionally, during the three months ended March 31, 2019, the Company recorded income of $1.0 million related to these partnerships, which was recognized in Other income in the unaudited condensed consolidated statements of income. At December 31, 2018, the Company's investment in limited partnerships was $13.4 million.