Stock-Based Compensation (Details) - Jun. 30, 2015 - shares shares in Thousands	Total
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Outstanding at January 1, 2015, Stock Options	519
Granted, Stock Options	0
Exercised and vested, Stock Options	0
Expired and forfeited, Stock Options	(87)
Outstanding at June 30, 2015, Stock Options	432
Options vested and expected to vest at June 30, 2015, Stock Options	432
Options exercisable at June 30, 2015, Stock Options	389
Outstanding at January 1, 2015, Nonvested Shares	46
Granted, Nonvested Shares	0
Exercised and vested, Nonvested Shares	(14)
Expired and forfeited, Nonvested Shares	0
Outstanding at June 30, 2015, Nonvested Shares	32