Equity (Tables)

12 Months Ended

Dec. 31, 2016

Stockholders' Equity Note [Abstract]

Schedule of common stock reflected on the consolidated balance sheet

The par value of common stock reflected on the consolidated balance sheet at December 31, 2016 is summarized below:

	Class A	Class B
Shares accounted for at December 31, 2013	42,504,656	28,235
Conversion of Class B shares	28,235	(28,235	)
Issuance of shares under employee and director compensation programs(1)	169,933	—
Shares issued under employee stock purchase plan	6,999	—
Shares issued upon exercise of warrants	904,231	—
Shares accounted for at December 31, 2014	43,614,054	—
Issuance of shares under employee and director compensation programs(1)	184,803	—
Shares issued under employee stock purchase plan	24,882	—
Shares accounted for at December 31, 2015	43,823,739	—
Issuance of common shares in public offering	8,625,000	—
Shares issued for Merger	13,140,020	—
Issuance of shares under employee and director compensation programs(1)	170,772	—
Shares issued under employee stock purchase plan	46,836	—
Shares accounted for at December 31, 2016(2)	65,806,367	—

(1) Of these vested shares, recipients sold back to the Company 46,941, 62,291 and 11,120 shares during the years ended December 31, 2016, 2015 and 2014, respectively, to satisfy tax withholding obligations. These repurchased shares are being recognized at cost as treasury stock on the consolidated balance sheet.

(2) In addition to the shares in the table above, there are shares of unvested restricted stock outstanding which are considered legally issued and outstanding and have been included in the number of shares presented on the consolidated balance sheets. The par value of unvested restricted stock has not yet been reflected in common stock on the consolidated balance sheet, as these shares have not yet vested and could be forfeited. There are also shares of restricted stock that were returned to treasury upon forfeiture. The par value of these shares is not reflected in the consolidated balance sheet, as no accounting recognition is given to forfeited shares.

Dividends Declared [Table Text Block]

The following table sets forth the quarterly dividends per share declared and paid to shareholders for the periods indicated:

Quarter Ending	Dividend Per Share		Date of Record	Date Paid
March 31, 2014	$	0.22	March 10, 2014	March 20, 2014
June 30, 2014	$	0.24	May 19, 2014	May 29, 2014
September 30, 2014	$	0.27	August 18, 2014	August 28, 2014
December 31, 2014	$	0.30	November 17, 2014	November 28, 2014
March 31, 2015	$	0.34	March 9, 2015	March 20, 2015
June 30, 2015	$	0.38	May 18, 2015	May 29, 2015
September 30, 2015	$	0.42	August 17, 2015	August 25, 2015
December 31, 2015	$	0.45	November 16, 2015	November 24, 2015
March 31, 2016	$	0.45	March 7, 2016	March 17, 2016
June 30, 2016	$	0.45	May 16, 2016	May 26, 2016
September 30, 2016	$	0.45	August 15, 2016	August 25, 2016
December 31, 2016	$	0.45	November 18, 2016	November 28, 2016
March 31, 2017	$	0.45	March 7, 2017	March 17, 2017