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Subsequent Events	6 Months Ended
Subsequent Events	Jun. 30, 2018
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events Dividend Declaration. On July 16, 2018, we announced that our Board of Directors declared a cash dividend of $0.55 per common share. As such, we expect to pay approximately $9.2 million (including dividend equivalents) on or about August 15, 2018 to stockholders of record and the holders of certain restricted stock units at the close of business on July 26, 2018.