Meanings of ridiculous lengths in English

And the ridiculous lengths I went to in order to find his killer!

However, his preposterous prescription illustrates the ridiculous lengths that the British establishment is prepared to go in order to retain its privileges.

The producers, nervous that the subject matter may look a little depressing, went to ridiculous lengths to assure audiences of its feelgood credentials.

"You say you rely on me, Helen, you say I'm the only one you can trust-butthen you go to these ridiculous lengths to obfuscate!"