Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Numerator:
Income from continuing operations	$ 170,945	$ 242	$ 175,803	$ 14,937
Income from continuing operations available for common stockholders	168,089	242	172,840	14,937
Income from discontinued operations	0	7,523	0	15,624
Net income available for common stockholders	$ 168,089	$ 7,765	$ 172,840	$ 30,561
Denominator:
Weighted average common shares - basic	419,402	210,129	411,137	210,516
Income from continuing operations available for common stockholders	$ 0.40	$ 0.00	$ 0.42	$ 0.07
Income from discontinued operations available for common stockholders	0.00	0.04	0.00	0.08
Earnings per common share - basic (in usd per share)	$ 0.40	$ 0.04	$ 0.42	$ 0.15
Numerator:
Income from continuing operations	$ 170,945	$ 242	$ 175,803	$ 14,937
Income from continuing operations available for common stockholders before net income attributable to noncontrolling interests in CPLP	170,945	242	175,797	14,937
Income from discontinued operations available for common stockholders	0	7,523	0	15,624
Net income available for common stockholders before net income attributable to noncontrolling interests in CPLP	$ 170,945	$ 7,765	$ 175,797	$ 30,561
Denominator:
Weighted average shares — basic	419,402	210,129	411,137	210,516
Add:
Potential dilutive common shares - stock options	320	233	306	171
Weighted average units of CPLP convertible into common shares	7,458	0	7,784	0
Weighted average common shares - diluted	427,180	210,362	419,227	210,687
Income from continuing operations available for common stockholders before net income attributable to noncontrolling interests in CPLP	$ 0.40	$ 0.00	$ 0.42	$ 0.07
Income from discontinued operations available for common stockholders	0.00	0.04	0.00	0.08
Earnings per common share - diluted	$ 0.40	$ 0.04	$ 0.42	$ 0.15
Stock Option
Add:
Weighted average anti-dilutive stock options outstanding	731	1,129	744	1,131
CPLP
Numerator:
Net income attributable to other noncontrolling interests from continuing operations	$ (2,856)	$ 0	$ (2,957)	$ 0
Numerator:
Net income attributable to other noncontrolling interests from continuing operations	(2,856)	0	(2,957)	0
Other Noncontrolling Interests
Numerator:
Net income attributable to other noncontrolling interests from continuing operations	0	0	(6)	0
Numerator:
Net income attributable to other noncontrolling interests from continuing operations	$ 0	$ 0	$ (6)	$ 0