Share-based compensation (Tables)

3 Months Ended

Mar. 31, 2014

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of management and director options activity

The management and director options activity for the three months ended March 31, 2014 and the year ended December 31, 2013 were as follows:

	Number of options		Weighted average exercise price
Balances as of January 1, 2013	10,956,838		$	13.20
Granted - employees	348,836		14.09
Granted - directors	—		—
Forfeited	(324,599	)	13.20
Exercised	—
Balances as of December 31, 2013	10,981,075		13.23
Granted - employees	348,836		18.25
Granted - directors	—
Forfeited	—		—
Exercised	—
Balances as of March 31, 2014	11,329,911		$	13.38

Schedule of management and director options outstanding

The following table summarizes information about the Company’s management and director share options outstanding as of March 31, 2014:

	Options outstanding			Options exercisable
Range of exercise prices	Number of options	Weighted average exercise price	Remaining contractual life	Number of options	Weighted average exercise price
$10.00-$10.89	6,588,647	$10.03	7.9	2,235,159	$10.00
$15.05-$16.89	2,405,516	$15.94	7.9	745,053	$16.00
$20.00-$25.05	2,335,748	$20.21	7.9	745,053	$20.00
	11,329,911	$13.38	7.9	3,725,265	$13.20

Schedule of restricted share award activity

Restricted share award activity for the three months ended March 31, 2014 and year ended December 31, 2013 was as follows:

	Number of non- vested restricted shares	Weighted average grant date fair value
Balance as of January 1, 2013	619,300	$	10.00
Granted	37,856	15.22
Forfeited	—
Vested	—
Balance as of December 31, 2013	657,156	10.30
Granted	3,125	15.05
Forfeited	—
Vested	—
Balance as of March 31, 2014	660,281	$	10.32