Stockholders' Equity of the Company (Details) (USD $) In Thousands, except Share data, unless otherwise specified	1 Months Ended	12 Months Ended
	Nov. 30, 2013	Dec. 31, 2014	Dec. 31, 2013
Stockholders' Equity Note [Abstract]
Authorized capital stock (in shares)		260,000,000
Authorized shares, par value (in dollars per share)		$ 0.01
Common stock, shares authorized (shares)		160,000,000	160,000,000
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01	$ 0.01
Excess stock, shares authorized (shares)		75,000,000
Excess stock, par value (in dollars per share)		$ 0.01
Preferred stock, shares authorized (shares)		25,000,000
Preferred stock, par value (in dollars per share)		$ 0.01
Shares issued (shares)		97,325,200
Excess shares issued (shares)		0
Excess shares outstanding (shares)		0
Issuance of common stock (shares)	2,600,000
Share Price	$ 95.94
Issuance of common stock	$ 248,900	$ 185,321	$ 290,699