Earnings Per Share (Details) - shares shares in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Earnings Per Share [Abstract]
Document Fiscal Year Focus	2015	2014	2013
WEIGHTED AVERAGE SHARES—BASIC (shares)	215,827	204,216	144,255
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	152	244	165
WEIGHTED AVERAGE SHARES—DILUTED (shares)	215,979	204,460	144,420
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	1,128	1,553	2,208