Share Repurchase (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Aug. 06, 2015
Equity [Abstract]
Shares of capital stock repurchased (in shares)	727,573,000	0
Stock repurchase program, authorized amount			$ 100,000,000
Stock repurchase program, remaining authorized repurchase amount	$ 60,000,000