Cash Dividends

3 Months Ended

Mar. 31, 2015

Stockholders' Equity Note [Abstract]

Cash Dividends

12. Cash Dividends

On January 27, 2015, our board of directors declared that the regular quarterly dividends to be paid to our stockholders in 2015 will be $0.15 per share of common stock, payable on March 12, June 12, September 11 and December 11 of 2015 to stockholders of record on March 5, June 5, September 4 and December 4 of 2015, the record dates for each of the dividend payments, respectively.

In connection with the March 12, 2015, dividend payment, the conversion rate for our convertible notes adjusted as follows:

Convertible Notes	Conversion Rate per $1,000 Principal Amount	Approximate Conversion Price Per Common Share		Effective Date
May 2015 Notes	174.8506	$	5.72	March 3, 2015