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Subsequent Events	3 Months Ended
Subsequent Events	Mar. 31, 2018
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events In April 2018, the Company’s Board of Directors declared a quarterly cash dividend of $0.22 per share, estimated to be $10.2 million in total, to be paid on July 26, 2018, to stockholders of record on July 5, 2018. This increased 5% over the last dividend declared by the Company in January 2018.