Share-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2017

Share-Based Compensation

Schedule of activity of parent company under the 2007 Stock Option Plan

						Weighted
						average
		Weighted		Aggregate		remaining
	Number of	average		intrinsic		contractual
(in thousands except exercise price and years)	options	exercise price		value		term (years)
Outstanding at December 31, 2015	33,889	$	0.71	$	10,506	8.9
Granted	6,973		1.02
Exercised	(122)		0.71	$	38
Forfeited or expired	(3,767)		0.71
Outstanding at December 31, 2016	36,973	$	0.77	$	9,315	7.8
Granted	1,518		1.19
Exercised	(123)		0.76	$	137
Forfeited or expired	(695)		0.77
Outstanding at December 31, 2017	37,673	$	0.79	$	40,875	6.8
Exercisable at December 31, 2017	20,845	$	0.75	$	23,266	6.8
Remaining authorized options available for issue	5,768

Schedule of assumptions used in determining the fair value of stock options granted under the Black-Scholes model

	Year Ended December 31,
	2017			2016			2015
Risk-free interest rate		1.82	%		1.56	%		1.75	%
Expected volatility		29.1	%		30.6	%		27.0	%
Dividend yield		N/A			N/A			N/A
Expected option life (years)		5.34			5.86			5.26
Black-Scholes Value of options	$	0.35		$	0.33		$	0.20