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Subsequent Event	12 Months Ended
Subsequent Event	Dec. 31, 2018
Subsequent Events [Abstract]
Subsequent Event	21. Subsequent Events Dividends On February 13, 2019, the Company's Board of Directors declared a cash dividend of $0.06 per share on its common stock. The dividend is payable on March 26, 2019 to stockholders of record as of the close of business on March 15, 2019. The continued declaration and payment of dividends is at the discretion of the Board of Directors and will be dependent upon, among other things, the Company's financial position, results of operations, cash flows and other factors.