Equity and Dividends (Tables)

9 Months Ended

Sep. 30, 2016

Equity and Dividends [Abstract]

Schedule of Quarterly Dividends Declared and Paid

	Declaration date	Dividend per share		Record date		Total dividends	Payment date
Nine months ended September 30, 2016:
Fourth quarter 2015	January 15, 2016	$	0.1600	February 12, 2016	$	17,154	March 4, 2016
First quarter 2016	May 9, 2016		0.1600	May 24, 2016		17,022	June 14, 2016
Second quarter 2016	August 5, 2016		0.1700	September 2, 2016		18,127	September 23, 2016
Nine months ended September 30, 2015:
Fourth quarter 2014	January 12, 2015	$	0.1400	February 13, 2015	$	15,089	March 6, 2015
First quarter 2015	May 7, 2015		0.1400	May 29, 2015		14,955	June 19, 2015
Second quarter 2015	August 6, 2015		0.1600	September 4, 2015		17,147	September 25, 2015